Tokushima University / Educator and Researcher Directory --- Hirano, Tomohiro

Personal Web Page

https://researchmap.jp/hiranoa2 (researchmap)

https://orcid.org/0000-0003-2144-6151 (ORCID)

Field of Study

○	Synthetic Polymer Chemistry

Subject of Study

○	Synthesis and characterization of stereoregular polymers by radical and anionic polymerizations (anionic polymerization, radical polymerization, stereoregular polymer)

Book / Paper

Book:

1.	Tomohiro Hirano : 高分子学会編・基礎高分子科学演習編第2版, Tokyo Kagaku Dozin C., Ltd., Tokyo, Jan. 2023.
2.	Tomohiro Hirano : 高分子学会編・高分子材料の事典, 朝倉書店, Tokyo, Nov. 2022.
3.	Tomohiro Hirano and 浅野敦志 : 機器分析ハンドブック1 有機・分光分析編, Kagaku-Dojin Publishing Company,INC, Kyoto, Apr. 2020.
4.	Tomohiro Hirano and Takehiro Kitaura : Stereospecific polymerization, In "Encyclopedia of Polymeric Nanomaterials", Springer-Verlag, Heidelberg, Jul. 2015. (Link to Publication Site) ● Publication site (DOI): 10.1007/978-3-642-36199-9_216-1 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/978-3-642-36199-9_216-1 (DOI: 10.1007/978-3-642-36199-9_216-1)
5.	Tomohiro Hirano : 高分子学会編・基礎高分子科学演習編, Tokyo Kagaku Dozin C., Ltd., Tokyo, Jul. 2011.

Academic Paper (Judged Full Paper):

1.	Ryota Kamiike, Tomohiro Hirano and Koichi Ute : Determination of the blending parameters of ternary blends containing a terpolymer as a component copolymer by multivariate analysis of NMR data, Polymer, Vol.310, 127467, 2024. (Summary) Heat-resistant ABS resin, an industrial polymer material, is generally prepared by mixing AN/MS bipolymer and/or AN/ST/MS terpolymer with the matrix of ABS resin, where AN, ST and MS denote acrylonitrile, styrene and α-methylstyrene, respectively. In order to predict the thermal properties of ABS resins, it is important to know which copolymers are blended and in what ratio. In this study, statistical structural analysis was performed on polymer blends consisting of AN/ST bipolymer, AN/MS bipolymer and AN/ST/MS terpolymer to predict blending parameters for heat-resistant ABS resin. Nuclear magnetic resonance (NMR) spectral data of the polymer blends were used as explanatory variables to determine the chemical composition and mole fraction of the component copolymers. Partial least-squares (PLS) regression and least absolute shrinkage and selection operator (LASSO) regression were used as the exploratory techniques. The use of 1H NMR spectral data showed poor prediction, probably because of low resolution due to the narrow spectral width. Accordingly, 13C NMR spectra, which have wider spectral widths, were used, resulting in the successful prediction of the blending parameters of the ternary blends containing a terpolymer as a component. It should be noted that it was not necessary to obtain the NMR spectra of all the polymer blends as the explanatory variables, i.e., linear combinations of the NMR spectra of the component copolymers were sufficient. (Tokushima University Institutional Repository) ● Metadata: 119599 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2024.127467 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2024.127467 (Tokushima University Institutional Repository: 119599, DOI: 10.1016/j.polymer.2024.127467)
2.	Daiki Mori, Keiji Minagawa, Fumitoshi Yagishita, Miyuki Oshimura, Tomohiro Hirano, Yasushi Imada and Yukihiro Arakawa : Synthesis of Alkynyl Spacer-Containing Chiral Polyguanidines and Their Noncovalent Modification for Organocatalyst Design, Molecular Catalysis, Vol.557, No.15, 113973, 2024. (Tokushima University Institutional Repository) ● Metadata: 119050 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.mcat.2024.113973 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.mcat.2024.113973 (Tokushima University Institutional Repository: 119050, DOI: 10.1016/j.mcat.2024.113973)
3.	Kazuma Abe, Miyuki Oshimura, Ryo Kawatani, Tomohiro Hirano and Koichi Ute : Synthesis of photodegradable polyesters from bio-based 3,4-dimethoxycinnamic acid and investigation of their degradation behaviors, Polymer, Vol.306, 127204, 2024. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2024.127204 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85194087953 (DOI: 10.1016/j.polymer.2024.127204, Elsevier: Scopus)
4.	Tomohiro Hirano, Masayoshi Watanabe, Miyuki Oshimura and Koichi Ute : Anionic polymerization of methyl methacrylate and chain-end modification via terminal-selective transesterification with bulky zincate, European Polymer Journal, Vol.201, 112581, 2023. (Summary) The anionic polymerization of methyl methacrylate (MMA) was investigated using dilithium tetra-tert-butylzincate (TBZL), which is a bulky zincate, as an initiator. Poly(methyl methacrylate) (PMMA) with a narrow molecular weight distribution was obtained by conducting the polymerization in toluene at -80 °C. Chain-end analysis revealed the formation of PMMA with a tert-butyl group at the α-end and a hydrogen atom at the ω-end. These results suggest the living nature of the present polymerization. However, a prolonged polymerization time or elevated temperature caused backbiting reactions. Postpolymerization modification of the formed PMMA was also investigated using TBZL as a transesterification catalyst. Chain-end analysis revealed that terminal-selective transesterification occurred only at the monomeric unit at the terminating chain end. Therefore, TBZL appears to play dual roles in the production of chain-end-modified PMMA: an initiator for anionic polymerization and a catalyst for terminal-selective transesterification. (Tokushima University Institutional Repository) ● Metadata: 118867 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.eurpolymj.2023.112581 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.eurpolymj.2023.112581 (Tokushima University Institutional Repository: 118867, DOI: 10.1016/j.eurpolymj.2023.112581)
5.	Ryota Kamiike, Tomohiro Hirano and Koichi Ute : Multivariate statistical analysis of ¹H NMR data for binary and ternary blends of copolymers to determine the chemical composition and blending fractions of the components, Polymer Journal, Vol.55, 967-974, 2023. (Summary) Statistical 1H nuclear magnetic resonance (NMR) analysis was conducted for ternary blends of copolymers. Two out of three monomers, acrylonitrile, styrene, and α-methylstyrene, were radically polymerized to synthesize three kinds of copolymers that were mixed to prepare binary and ternary blends of the copolymers. The 1H NMR spectral matrix of the copolymers and their blends (explanatory variables) was combined with the blending parameter matrix (objective variables). Cross-validation with the least absolute shrinkage and selection operator regression confirmed that excellent regression models were constructed with the dataset composed of data for eight copolymers and forty-five binary blends to predict the blending parameters, such as the chemical composition and mole fraction of the component copolymers, in the binary blends. Accordingly, the models were applied to predict the blending parameters in the ternary blends, resulting in successful predictions with high accuracy. Other regularized regression models, such as Ridge regression and Elastic Net, were also examined. (Tokushima University Institutional Repository) ● Metadata: 118635 (Link to Publication Site) ● Publication site (DOI): 10.1038/s41428-023-00794-5 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1038/s41428-023-00794-5 (Tokushima University Institutional Repository: 118635, DOI: 10.1038/s41428-023-00794-5)
6.	Ken Yoshida, Ayato Doi, Haruka Yoshioka, Tomohiro Hirano and Masaru Nakahara : Nuclear Magnetic Resonance Analysis of Hydrothermal Reactions of Ethyl- and Octylamine in Sub- and Supercritical Water, The Journal of Physical Chemistry A, Vol.127, No.17, 3848-3861, 2023. (Summary) Hydrothermal reactions of aliphatic amines have recently gained importance in relation to the application of amines as film-forming corrosion inhibitors for steam-water cycles. The kinetics and mechanism of the hydrothermal reactions of ethylammomiun cation (EtAH) and -octylammonium cation (OctAH) were studied for comparison with the corresponding neutral amines to elucidate their reaction products and pathways at sub- and supercritical temperatures of 300-400 °C as model reactions of aliphatic ammonium cations. We analyzed the reaction of C-N-labeled EtAH using NMR spectroscopy and revealed that the initial hydrolysis to ethanol, known as the main path, is followed by the elimination reaction producing ethene and the disproportionation reaction giving diethylammonium cation. The OctAH yields octene and octanol, each of which isomerizes to thermodynamically more stable species as the major products. Comparisons were made between the reactions of the neutral amines and ammonium cations to highlight their different reactivity. The hydrolysis, alkene formation, and dehydration of alcohols to alkenes were all found to be accelerated at low pH. The formation of low-molecular-weight organic acids such as acetic acid and formic acid was not observed. These results indicate that the corrosion protection effect of film-forming amines will be maintained under practical conditions with pH values as high as around 9 to 10, and hence side reactions involving byproducts will be suppressed. (Tokushima University Institutional Repository) ● Metadata: 119419 (Link to Publication Site) ● Publication site (DOI): 10.1021/acs.jpca.3c01213 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 37093710 ● Search Scopus @ Elsevier (PMID): 37093710 ● Search Scopus @ Elsevier (DOI): 10.1021/acs.jpca.3c01213 (Tokushima University Institutional Repository: 119419, DOI: 10.1021/acs.jpca.3c01213, PubMed: 37093710)
7.	Yukihiro Arakawa, Yoshiko Sogabe, Keiji Minagawa, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute and Yasushi Imada : Immobilization of a flavin molecule onto poly(methacrylic acid)s and its application in aerobic oxidation catalysis: effect of polymer stereoregularity, Organic & Biomolecular Chemistry, Vol.21, No.2, 289-293, 2023. (Tokushima University Institutional Repository) ● Metadata: 119049 (Link to Publication Site) ● Publication site (DOI): 10.1039/D2OB01834A (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1039/D2OB01834A (Tokushima University Institutional Repository: 119049, DOI: 10.1039/D2OB01834A)
8.	Ryota Kamiike, Tomohiro Hirano and Koichi Ute : Statistical determination of chemical composition and blending fraction of copolymers by multivariate analysis of 1H NMR spectra of binary blends of the copolymers, Polymer, Vol.256, 125207, 2022. (Summary) A chemometric approach for the quantitative structural analysis of binary blends of copolymers was conducted. Three types of copolymers were synthesized by radical emulsion copolymerization of two out of three monomers acrylonitrile, styrene, and α-methylstyrene to prepare three series of binary blends of these copolymers. Partial least-squares (PLS) regression and least absolute shrinkage and selection operator (LASSO) regression were conducted with datasets in which the 1H nuclear magnetic resonance (NMR) spectral matrix of the binary blends (explanatory variables) is combined with the blending parameter matrix (objective variables) of the binary blends. The blending parameters, such as chemical compositions and mole fractions of the component copolymers, were successfully predicted without any assignments of the 1H NMR signals through stepwise optimization of the objective and explanatory variables. LASSO regression exhibited higher accuracy than PLS regression, suggesting that the variable selection in LASSO regression was responsible for the improvement in the quantitative prediction. (Tokushima University Institutional Repository) ● Metadata: 117324 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2022.125207 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2022.125207 (Tokushima University Institutional Repository: 117324, DOI: 10.1016/j.polymer.2022.125207)
9.	Tomohiro Hirano, Ryota Kamiike, Takumi Yuki, Daishi Matsumoto and Koichi Ute : Determination of Monomer Reactivity Ratios from a Single Sample using Multivariate Analysis of the 1H NMR Spectra of Poly[(methyl methacrylate)-co-(benzyl methacrylate)], Polymer Journal, Vol.54, No.5, 623-631, 2022. (Summary) Copolymers of methyl methacrylate (MMA) and benzyl methacrylate (BnMA) were prepared by conventional radical copolymerization in toluene at 70 °C. The 1H nuclear magnetic resonance (NMR) spectra of these copolymers were measured in various solvents at different temperatures. The signals of the methoxy protons in the MMA units and the benzyl protons in the BnMA units showed splitting mainly because of the triad monomer sequences when the temperature was increased to 150 °C in deuterated dimethyl sulfoxide. However, the splitting was not sufficient to determine the mole ratios of the triad sequences. Therefore, multivariate analysis was applied to the 1H NMR spectra of copolymers with various chemical compositions. Principal component analysis successfully extracted information on the polymer microstructures. Partial least-squares (PLS) regression successfully predicted the mole fractions of the diad monomer sequences. Then, the fractions of the diad sequences in an unknown sample prepared in benzene at 60 °C were predicted using PLS regression to determine the monomer reactivity ratios. Thus, the monomer reactivity ratios were successfully determined from a single sample using multivariate analysis of the 1H NMR spectra of copolymers of MMA and BnMA. (Tokushima University Institutional Repository) ● Metadata: 116651 (Link to Publication Site) ● Publication site (DOI): 10.1038/s41428-022-00618-y (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85124769696 (Tokushima University Institutional Repository: 116651, DOI: 10.1038/s41428-022-00618-y, Elsevier: Scopus)
10.	Tomohiro Hirano, Takumi Yuki, Ryotaro Kizu, Ryota Kamiike, Miyuki Oshimura and Koichi Ute : Cationic homopolymerization of trans-anethole in the presence of solvate ionic liquid comprising LiN(SO2CF3)2 and Lewis bases, Polymer, Vol.246, 124780, 2022. (Summary) Cationic homopolymerization of a biomass-derived monomer, trans-4-methoxy-β-methylstyrene (trans-anethole: Ane), was achieved with a combination of bis(trifluoromethylsulfonyl)imide and solvate ionic liquid comprising lithium bis(trifluoromethylsulfonyl)imide and a Lewis base, such as ethyl acetate and diisopropyl ether (iPr2O). The number-average molecular weight (Mn) of the obtained poly(Ane) reached 15.6 × 103 by adding iPr2O in toluene at 10 °C. The solubility of poly(Ane) varied drastically with a change of solvent: the polymers obtained in CH2Cl2 were not completely soluble in common organic solvents such as toluene, chloroform, and tetrahydrofuran, except for 1,1,2,2,-tetrachloroethane (C2H2Cl4) at 140 °C, whereas the polymers obtained in toluene were soluble in these solvents. The 1H NMR spectrum measured in C2D2Cl4 at 140 °C revealed that the stereostructure of poly(Ane) depended significantly on the solvent and the temperature: a polymer with a more regulated stereostructure was obtained from polymerization in CH2Cl2 at 40 °C than those obtained by polymerization in toluene at 10 °C. (Tokushima University Institutional Repository) ● Metadata: 116833 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2022.124780 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2022.124780 (Tokushima University Institutional Repository: 116833, DOI: 10.1016/j.polymer.2022.124780)
11.	Tomohiro Hirano, Yosuke Fujita, Miki Shinomiya, Yukihiro Arakawa, Fumitoshi Yagishita, Akira Emoto, Miyuki Oshimura and Koichi Ute : Hydrogen-Bond-Assisted Asymmetric Radical Cyclopolymerization of N-allyl-N- tert-butylacrylamide in the Presence of Chiral Tartrates, Polymer, Vol.226, 123823, 2021. (Summary) 光学活性な酒石酸エステル存在下，N-アリル-N-tert-ブチルアクリルアミドのラジカル環化重合を行うと，光学活性なポリマーが得られることを見出した．比旋光度および円二色性スペクトルなどの光学特性や脱tert-ブチル化したポリマーのNMRスペクトルから，L-酒石酸エステルを添加すると(3S,4S)-transの立体構造を有する繰り返し単位が優先的に生成することがわかった． (Tokushima University Institutional Repository) ● Metadata: 116652 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2021.123823 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85105340285 (Tokushima University Institutional Repository: 116652, DOI: 10.1016/j.polymer.2021.123823, Elsevier: Scopus)
12.	Tomohiro Hirano, Misato Sugiura, Ryuya Endo, Miyuki Oshimura and Koichi Ute : De-tert-butylation of poly(N-tert-butyl-N-n-propylacrylamide): Stereochemical analysis at the triad level, Journal of Polymer Science, Vol.58, No.20, 2857-2863, 2020. (Summary) NMRスペクトルから立体規則性を定量できないポリ(N-tert-ブチル-N-n-プロピルアクリルアミド)の脱tert-ブチル化反応を行うと，得られるポリ(N-n-プロピルアクリルアミド)の13C NMRから3連子立体規則性が定量できることを見出した． (Tokushima University Institutional Repository) ● Metadata: 116653 (Link to Publication Site) ● Publication site (DOI): 10.1002/pol.20200473 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pol.20200473 (Tokushima University Institutional Repository: 116653, DOI: 10.1002/pol.20200473)
13.	Tomohiro Hirano, Yuta Ogasa, Miyuki Oshimura and Koichi Ute : Chemoselective radical polymerization of N-allylmethacrylamide with an aid of complexation with Li+ cation, Polymer, Vol.201, 122664, 2020. (Summary) LiNTf2存在化N-アリルメタクリルアミドのラジカル重合を行うと，Li+カチオンとの錯形成によって安定化されたラジカルとLi+カチオンとの錯形成によって活性化したモノマーとの間で化学選択的に重合が進行し，側鎖にアリル基を有する線状ポリマーが得られることを見出した． (Tokushima University Institutional Repository) ● Metadata: 115166 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2020.122664 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2020.122664 (Tokushima University Institutional Repository: 115166, DOI: 10.1016/j.polymer.2020.122664)
14.	Tomohiro Hirano, Menghao Li, Kouki Maeda, Miyuki Oshimura and Koichi Ute : Unusually large hysteresis in temperature-responsive phase-transition behavior of aqueous solutions of isotactic copolymers comprising N-ethylacrylamide and N-isopropylacrylamide, Polymer, Vol.198, 122530, 2020. (Summary) イソタクチックな立体構造を有するN-エチルアクリルアミド/N-イソプロピルアクリルアミド共重合体の水溶液が示す下限臨界溶液温度型相転移挙動について調べた．NIPAAm組成が13.9∼28.0 mol%の共重合体が約40℃の大きなヒステリシスを示すことを明らかにした．これは，これまで報告されている中で最も大きなヒステリシスである．光散乱による測定から，大きなヒステリシスが発現するメカニズムについて考察を行った． (Tokushima University Institutional Repository) ● Metadata: 115170 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2020.122530 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2020.122530 (Tokushima University Institutional Repository: 115170, DOI: 10.1016/j.polymer.2020.122530)
15.	Koto Suganuma, Tetsuo Asakura, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute and H-N. Cheng : NMR Analysis of Poly(Lactic Acid) via Statistical Models, Polymers, Vol.11, No.3, 725-733, 2019. (Summary) The physical properties of poly(lactic acid) (PLA) are influenced by its stereoregularity and stereosequence distribution, and its polymer stereochemistry can be effectively studied by NMR spectroscopy. In previously published NMR studies of PLA tacticity, the NMR data were fitted to pair-addition Bernoullian models. In this work, we prepared several PLA samples with a tin catalyst at different L,L-lactide and D,D-lactide ratios. Upon analysis of the tetrad intensities with the pair-addition Bernoullian model, we found substantial deviations between observed and calculated intensities due to the presence of transesterification and racemization during the polymerization processes. We formulated a two-state (pair-addition Bernoullian and single-addition Bernoullian) model, and it gave a better fit to the observed data. The use of the two-state model provides a quantitative measure of the extent of transesterification and racemization, and potentially yields useful information on the polymerization mechanism. (Keyword) tacticity / stereosequences / Bernoullian statistics (Tokushima University Institutional Repository) ● Metadata: 115689 (Link to Publication Site) ● Publication site (DOI): 10.3390/polym11040725 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.3390/polym11040725 (Tokushima University Institutional Repository: 115689, DOI: 10.3390/polym11040725)
16.	Tomohiro Hirano, Ken Yoshida, Miyuki Oshimura and Koichi Ute : High-Pressure and High-Temperature NMR Observation of Synthetic Polymers: High-Resolution Measurement Taking Advantage of Motional Narrowing in Sub-Critical Fluids, The Review of High Pressure Science and Technology, Vol.28, No.2, 95-101, 2018. (Link to Publication Site) ● Publication site (DOI): 10.4131/jshpreview.28.95 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85050754096 (DOI: 10.4131/jshpreview.28.95, Elsevier: Scopus)
17.	Tomohiro Hirano, Ryotaro Kizu, Junpei Hashimoto, Nenji Munekane, Yohei Miwa, Miyuki Oshimura and Koichi Ute : Thermally induced cationic polymerization of isobutyl vinyl ether in toluene in the presence of solvate ionic liquid, Polymer Chemistry, Vol.9, No.12, 1421-1429, 2018. (Summary) ラジカルとリチウムカチオンとの相互作用を利用して，イソブチルビニルエーテル(IBVE)のラジカル重合を試みた． LiN(SO2CF3)2(LiNTf2)およびメタクリル酸メチル(MMA)および酢酸ビニル(VAc)のようなエステル化合物をそれぞれLi+源およびLiNTf2の溶解剤として添加した．MMAおよびVAcなどのラジカル重合性モノマーが存在するにもかかわらずカチオン重合性IBVEのホモポリマーが得られた．期待とは異なり，ラジカル機構ではなくカチオン機構で重合が進行した．しかし，このカチオン重合は珍しいことがわかった．特に，重合収率は重合温度と共に増加した． 100℃では重合が進行したが，0℃などの低温では重合は起こらなかった．したがって，本系の挙動を「熱誘起カチオン重合」と定義した．熱誘発カチオン重合のメカニズムは明確ではないが，LiNTf2とルイス塩基との間に形成される溶媒和イオン液体との相互作用によって，成長カチオンが顕著に安定化されたと考えられる． (Tokushima University Institutional Repository) ● Metadata: 115171 (Link to Publication Site) ● Publication site (DOI): 10.1039/c8py00164b (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1039/c8py00164b (Tokushima University Institutional Repository: 115171, DOI: 10.1039/c8py00164b)
18.	Hsu Yuchin, Chuang Mingyeh, Tomohiro Hirano and Koichi Ute : Multivariate analysis of 13C NMR spectra to extract information about monomer sequences in poly(methyl methacrylate-co-benzyl methacrylate)s prepared by various polymer reactions, Polymer Journal, Vol.50, No.5, 355-363, 2018. (Link to Publication Site) ● Publication site (DOI): 10.1038/s41428-018-0027-9 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1038/s41428-018-0027-9 (DOI: 10.1038/s41428-018-0027-9)
19.	Miyuki Oshimura, Tomoki Hirata, Tomohiro Hirano and Koichi Ute : Synthesis of aliphatic polycarbonates by irreversible polycondensation catalyzed by dilithium tetra-tert-butylzincate, Polymer, Vol.131, 50-55, 2017. (Summary) Diethyl carbonate was reacted with phenol or 1,6-hexanediol with 5 mol% dilithium tetra-tert-butylzincate (TBZL) as a catalyst at 25 or 70 °C. The exchange reaction with phenol did not occur under these conditions, while that with 1,6-hexanediol did. Thus, polycondensation of diphenyl carbonate with 1,6-hexanediol was investigated. As expected, poly (hexamethylene carbonate) was obtained without removal of the by-product phenol. Conversion reached over 99% with increasing polymerization temperature. Additionally, 1,5-pentandiol and 1,9-nonanediol were also suitable diols for the polycondensation. Aliphatic polycarbonates with number-average molecular weights of 10,000 or more were obtained under optimum polymerization conditions. Polycondensation catalyzed by TBZL proceeded faster than that by titanium tetraisopropoxide, which is used as a general catalyst for polycondensation of diesters, dialkylcarbonates, and diphenyl carbonate with diols. Polycondensations with TBZL proceeded under atmospheric pressure in the presence of the by-product phenol. This polymerization system is expected to be applicable to various diols. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2017.10.022 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2017.10.022 (DOI: 10.1016/j.polymer.2017.10.022)
20.	Shunsuke Kametani, Sokei Sekine, Takahiro Ohkubo, Tomohiro Hirano, Koichi Ute, N. H. Cheng and Tetsuo Asakura : NMR studies of water dynamics during sol-to-gel transition of poly (N-isopropylacrylamide) in concentrated aqueous solution, Polymer, Vol.109, 287-296, 2017. (Summary) The focus of this work was on the significant changes in the water dynamics of aqueous poly (N-isopropylacrylamide) (PNIPAM) solution during sol-to-gel transition. Through the use of NMR (particularly two-dimensional 2H NMR T1-T2 relaxation) and rheology, we were able to show that below 34° C fast exchange occurs among free water and water molecules adsorbed on the surface of PNIPAM molecules. At 34° C, PNIPAM becomes aggregated; most of the water molecules are trapped in the PNIPAM aggregates, where water molecules with different dynamics are found. Above 34° C, PNIPAM molecules aggregate further to form a gel network; the free bulk water then becomes dominant at this stage. On the basis of these observations, a model where water molecules interact with PNIPAM in different ways during the transition was proposed. We believe that our experimental approach provides new information and fresh perspectives on the sol-to-gel transition of PNIPAM. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2016.12.063 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2016.12.063 (DOI: 10.1016/j.polymer.2016.12.063)
21.	Takanori Tada, Tomohiro Hirano, Koichi Ute, Yukiteru Katsumoto, Taka-aki Asoh, Tatsuya Shoji, Noboru Kitamura and Yasuyuki Tsuboi : Effects of Syndiotacticity on the Dynamic and Static Phase Separation Properties of Poly(N-Isopropylacrylamide) in Aqueous Solution, The Journal of Physical Chemistry B, Vol.120, No.31, 7724-7730, 2016. (Summary) The dynamic and static phase separation behavior in aqueous poly(N-isopropylacrylamide) (PNIPAM) solutions is highly sensitive to the tacticity of PNIPAM. We investigated the phase separation dynamics of aqueous solutions of PNIPAM with different tacticities (atactic and syndiotactic-rich types) and found that the phase separation dynamics of syndiotactic-rich PNIPAM was much different from that of atactic-type PNIPAM. First, phase separation in syndiotactic-rich PNIPAM was faster. Second, there was a critical point (Ccp) in the concentration dependence of the phase separation rate: the phase separation accelerated dramatically when the solution concentration was higher than 2.0 wt % (= Ccp). Third, syndiotactic-rich PNIPAM required a higher thermal energy for phase separation compared to atactic PNIPAM. Such behavior can be explained on the basis of the high hydrophobicity of syndiotactic-rich PNIPAM in a dehydrated state and a diffusion-controlled aggregation model. The present study shows that precise control of the stereoregularity will open new channels toward the design and development of stimuli-responsive-polymer-based smart materials. (Link to Publication Site) ● Publication site (DOI): 10.1021/acs.jpcb.6b03200 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 27414162 ● Summary page in Scopus @ Elsevier: 2-s2.0-84982106367 (DOI: 10.1021/acs.jpcb.6b03200, PubMed: 27414162, Elsevier: Scopus)
22.	Tomohiro Hirano, Ryota Kamiike, Yuchin Hsu, Hikaru Momose and Koichi Ute : Multivariate analysis of 13C NMR spectra of branched copolymers prepared by initiator-fragment incorporation radical copolymerization of ethylene glycol dimethacrylate and tert-butyl methacrylate, Polymer Journal, Vol.48, No.7, 793-800, 2016. (Summary) In this paper, we report chemometric approach for structural analysis of branched copolymers. To evaluate chemical compositions and degree of branching (DB) values in branched copolymers, multivariate analyses, such as principal component analysis (PCA) and partial least-squares (PLS) regression, were applied to the 13C nuclear magnetic resonance (NMR) spectra of the carbonyl carbons of the copolymers prepared by initiator-fragment incorporation radical copolymerization of ethylene glycol dimethacrylate (EGDMA) and tert-butyl methacrylate (TBMA) with dimethyl 2,2'-azobisisobutyrate (MAIB). PCA successfully extracted information on monomeric units, such as EGDMA units, TBMA units and MAIB fragments, the last of which were incorporated via initiation and primary radical termination. The chemical compositions and the DB values of the copolymers were predicted by PLS regression. Proper selection of a training set was found to be important for the prediction: the training set has to contain branched copolymers along with poly(EGDMA) and poly(TBMA). PLS regression using the appropriate training set allowed us to predict quantitatively the chemical compositions and DB values, without any assignments of the individual peaks. (Tokushima University Institutional Repository) ● Metadata: 115209 (Link to Publication Site) ● Publication site (DOI): 10.1038/pj.2016.16 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84977160706 (Tokushima University Institutional Repository: 115209, DOI: 10.1038/pj.2016.16, Elsevier: Scopus)
23.	Miyuki Oshimura, Yuki Oda, Keita Kondoh, Tomohiro Hirano and Koichi Ute : Efficient acylation and transesterification catalyzed by dilithium tetra-tert-butylzincate at low temperatures, Tetrahedron Letters, Vol.57, No.19, 2070-2073, 2016. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.tetlet.2016.03.096 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84963864282 (DOI: 10.1016/j.tetlet.2016.03.096, Elsevier: Scopus)
24.	Tomohiro Hirano, Tadashi Segata, Junpei Hashimoto, Yohei Miwa, Miyuki Oshimura and Koichi Ute : Syndiotactic- and heterotactic-specific radical polymerization of N-n-propylmethacrylamide complexed with alkali metal ions, Polymer Chemistry, Vol.6, No.27, 4927-4939, 2015. (Summary) LiNTf2を含むアルカリ金属塩存在下でN-n-プロピルアクリルアミドのラジカル重合を行った．アルカリ金属塩を添加すると，得られるポリマーの収率と分子量が著しく増加した．さらに，LiNTf2存在下では溶媒によって立体特異性が変化した．NMR測定からモノマー/Li+錯体の化学量論比が立体特異性を決める要因であることがわかった．ESR測定からLi塩の添加によって成長反応速度定数が増加し，停止反応速度定数が低下することがわかった．また，立体規則性が相転移挙動に影響を及ぼすこともわかった．例えば，シンジオタクチックポリマーではrr3連子の増加とともに相転移温度が低下した．また，ヘテロタクチックポリマーではmr3連子の増加とともにヒステリシスが増加した． (Tokushima University Institutional Repository) ● Metadata: 115210 (Link to Publication Site) ● Publication site (DOI): 10.1039/C5PY00755K (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84934301321 (Tokushima University Institutional Repository: 115210, DOI: 10.1039/C5PY00755K, Elsevier: Scopus)
25.	Tomohiro Hirano, Tatsuya Saito, Yoshitaka Kurano, Yohei Miwa, Miyuki Oshimura and Koichi Ute : Dual role for alkali metal cations in enhancing the low-temperature radical polymerization of N,N-dimethylacrylamide, Polymer Chemistry, Vol.6, No.11, 2054-2064, 2015. (Summary) The radical polymerization of N,N-dimethylacrylamide (DMAAm) has been investigated in the presence of several alkali metal salts, including lithium bis(trifluoromethanesulfonyl)imide (LiNTf2). The addition of an alkali metal salt led to a significant increase in the yield and molecular weight of the resulting polymer. NMR analysis of mixtures of DMAAm and LiNTf2 suggested that DMAAm was being activated by the coordination of Li+ to its C=O group. Electron spin resonance analysis of the DMAAm polymerization in the presence of LiNTf2 suggested that the propagating radical was being stabilized by Li+ through a single-electron lithium bond, because a signal for the propagating radical of the acrylamide derivatives was observed for the first time in solution when LiNTf2 was added. Based on these results, we have proposed a mechanism for this polymerization, where the propagation steps occur between a lithium ion-stabilized propagating radical and a lithium ion-activated incoming monomer. Furthermore, polymers with a wide range of stereoregularities, such as isotactic, syndiotactic and heterotactic systems, were successfully prepared using this method by carefully selecting the appropriate combination of solvent and alkali metal salt. (Tokushima University Institutional Repository) ● Metadata: 115211 (Link to Publication Site) ● Publication site (DOI): 10.1039/C4PY01662A (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84924054971 (Tokushima University Institutional Repository: 115211, DOI: 10.1039/C4PY01662A, Elsevier: Scopus)
26.	Miyuki Oshimura, Ryo Okazaki, Tomohiro Hirano and Koichi Ute : Ring-opening polymerization of epsilon-caprolactone with dilithium tetra-tert-butylzincate under mild conditions, Polymer Journal, Vol.46, No.12, 866-872, 2014. (Link to Publication Site) ● Publication site (DOI): 10.1038/pj.2014.76 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1038/pj.2014.76 (DOI: 10.1038/pj.2014.76)
27.	Tomohiro Hirano, Yuya Miyamoto, Shinya Amano, Kazuya Tatsumi, Takuya Anmoto, Hiroshi Kimura, Ken Yoshida, Miyuki Oshimura and Koichi Ute : Hydrogen-bond-assisted isotactic-specific radical polymerization of N-vinyl-2-pyrrolidone with tartrate additives in toluene at low temperatures: high-resolution 1H NMR analysis, RSC Advances, Vol.4, No.95, 53079-53089, 2014. (Summary) A diethyl L-tartrate (L-EtTar)-assisted radical polymerization of N-vinyl-2-pyrrolidone has been developed as the first reported example of the synthesis of isotactic-rich poly(N-vinyl-2-pyrrolidone) (PVP). The addition of L-EtTar in toluene at temperatures of -40 °C and lower led to a significant increase in the polymer yield by one order of magnitude compared with the reaction in the absence of L-EtTar. Decreasing the polymerization temperature led to increases in the isotacticity of the PVP, with the mm triad reaching 66.4% at -93 °C. 1H NMR measurement at 920 MHz was conducted to establish a reliable strategy for quantifying the triad tacticities. High-temperature NMR measurements at 250 °C were performed using a specially-designed NMR probe, which led to dramatic narrowing of the 1H line width. (Tokushima University Institutional Repository) ● Metadata: 115212 (Link to Publication Site) ● Publication site (DOI): 10.1039/C4RA08743G (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1039/C4RA08743G (Tokushima University Institutional Repository: 115212, DOI: 10.1039/C4RA08743G)
28.	Tomohiro Hirano, Akiko Ono, Hiroaki Yamamoto, Takeshi Mori, Yasushi Maeda, Miyuki Oshimura and Koichi Ute : Effect of composition and stereoregularity on phase-transition behavior of aqueous N-ethylacrylamide/N-n-propylacrylamide copolymer solutions, Polymer, Vol.54, No.21, 5601-5608, 2013. (Summary) Radical copolymerizations of N-ethylacrylamide and N-n-propylacrylamide (NNPAAm) at various ratios were carried out at -40 °C, in toluene in the presence of 3-methyl-3-pentanol, or in N-ethylacetamide. Syndiotactic-rich copolymers with racemo diad contents of 67.1 70.2%, and isotactic-rich copolymers with meso diad contents of 60.9 64.5% were prepared. Syndiotactic-rich copolymers with NNPAAm compositions of ≥92.9 mol% exhibited large hystereses in the phase-transition temperatures of their aqueous solutions. Isotactic-rich copolymers with NNPAAm compositions of 39.2 67.6 mol% exhibited large hystereses in the phase-transition temperatures of their aqueous solutions. Those of composition >67.6 mol% were insoluble in water. Stereosequence analysis suggested that isotactic sequences favored intramolecular hydrogen bonding between contiguous NNPAAm units, more than syndiotactic sequences. Enhanced intramolecular hydrogen bonding in isotactic sequences was responsible for the large hystereses and insolubility of isotactic-rich copolymers with high NNPAAm compositions. (Tokushima University Institutional Repository) ● Metadata: 115213 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2013.08.006 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2013.08.006 (Tokushima University Institutional Repository: 115213, DOI: 10.1016/j.polymer.2013.08.006)
29.	Tomohiro Hirano, Takahiro Furutani, Tatsuya Saito, Tadashi Segata, Miyuki Oshimura and Koichi Ute : Isotactic-specific anionic polymerization of N-isopropylacrylamide with dilithium tetra-tert-butylzincate in the presence of a fluorinated alcohol or Lewis acid, Polymer, Vol.53, No.22, 4961-4966, 2012. (Summary) The polymerization of N-isopropylacrylamide (NIPAAm) with dilithium tetra-tert-butylzincate (TBZL) has been investigated in toluene at low temperatures in the presence of alkyl and fluorinated alcohols. Of the alcohols examined, 1,1,1,3,3,3-hexafluoro-2-propanol induced isotactic specificity and accelerated the polymerization process, affording the corresponding poly(NIPAAm)s with meso (m) diad contents of 82% in relatively high yields. It is worthy of note that the introduction of a fluorinated alcohol, which is typically used as an inhibitor in conventional anionic polymerization processes, enabled control over the stereospecificity and rate of the anionic polymerization of NIPAAm when TBZL was used as an initiator. Yttrium trifluoromethanesulfonate also induced isotactic specificity in the NIPAAm polymerization process in methanol and gave poly(NIPAAm) with an m diad content of 88% in high yield. (Tokushima University Institutional Repository) ● Metadata: 115215 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2012.09.004 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2012.09.004 (Tokushima University Institutional Repository: 115215, DOI: 10.1016/j.polymer.2012.09.004)
30.	Hikaru Momose, Maeda Tomoya, Hattori Kosuke, Tomohiro Hirano and Koichi Ute : Statistical Determination of Chemical Composition and Monomer Sequence Distribution of Poly(methyl methacrylate-co-tert-butyl methacrylate)s by Multivariate Analysis of ¹³C NMR Spectra, Polymer Journal, Vol.44, No.8, 808-814, 2012. (Summary) To evaluate chemical compositions and heterogeneity of comonomer sequences in methyl methacrylate (MMA)-tert-butyl methacrylate (TBMA) copolymers, multivariate analysis was applied to the 13C nuclear magnetic resonance (NMR) spectra of the carbonyl, backbone quaternary and α-methyl carbons of the copolymers. A better linear relationship was found between the first principal component score and the chemical composition in copolymers than was found between the results from spectra of the carbonyl and backbone quaternary carbons. The chemical compositions of 16 copolymers were successfully predicted by partial least squares regression (PLSR). The second principal component was found to reflect the fraction of MMA-TBMA hetero dyad sequence. Dyad sequence distributions of copolymers that were obtained at higher conversions were successfully determined by PLSR with those of copolymers obtained at low conversions as a training set. Multivariate analysis using properly prepared samples provided us with quantitative information of chemical compositions and comonomer sequence distributions, without assignment of the 13C NMR resonance peaks. (Link to Publication Site) ● Publication site (DOI): 10.1038/pj.2012.110 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1038/pj.2012.110 (DOI: 10.1038/pj.2012.110)
31.	Tomohiro Hirano, Takuya Anmoto, Nao Umezawa, Hikaru Momose, Yukiteru Katsumoto, Miyuki Oshimura and Koichi Ute : Application of Multivariate Analysis of NMR Spectra of Poly(N-isopropylacrylamide) to Assignment of Stereostructures and Prediction of Tacticity Distribution, Polymer Journal, Vol.44, No.8, 815-820, 2012. (Summary) In this paper, we report multivariate analyses, such as principal component analysis and partial least-squares regression, of NMR spectra of poly(N-isopropylacrylamide)s [poly(NIPAAm)s]. Principal component analysis successfully interpreted the assignments of NMR spectra of poly(NIPAAm)s in terms of stereostructures for the methine carbons at triad levels and for the methylene protons at tetrad levels. Furthermore, triad tacticity was successfully predicted by partial least-squares regression of 1H NMR spectra of the methine and methylene groups, although the low resolution of the signals of the methine protons confines determination of tacticities by conventional methods to the diad levels. Consequently, it is assumed that chemometric approaches are useful for assigning NMR spectra in terms of stereostructures and for predicting tacticity distributions. (Tokushima University Institutional Repository) ● Metadata: 115216 (Link to Publication Site) ● Publication site (DOI): 10.1038/pj.2012.61 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1038/pj.2012.61 (Tokushima University Institutional Repository: 115216, DOI: 10.1038/pj.2012.61)
32.	Pei Cheng Chua, Malcolm A. Kelland, Tomohiro Hirano and Hiroaki Yamamoto : Kinetic Hydrate Inhibition of Poly(N-isopropylacrylamide)s with Different Tacticities, Energy & Fuels, Vol.26, No.8, 4961-4967, 2012. (Summary) Poly(N-isopropylacrylamide)s (PNIPAMs) and poly(N-isopropylmethacrylamide)s have been investigated recently as kinetic hydrate inhibitors (KHIs). Now, poly(N-isopropylmethacrylamide) is commercialized. These are usually made by standard radical polymerization methods, which do not allow for control over the polymer tacticity. For this study, PNIPAMs were synthesized using new polymerization methods, giving a fairly high degree of tacticity control. We report here results on the performance of different tacticities of PNIPAMs with similar molecular weights in KHI tests with natural gas in stirred autoclaves and on tetrahydrofuran (THF) structure II hydrate crystal growth. From the results, we can conclude that the polymer tacticity does affect the KHI performance of PNIPAMs. PNIPAM with a higher syndiotactic percentage performed better than PNIPAM with a lower syndiotactic percentage. Both polymers demonstrated some kind of crystal surface adsorption by affecting the morphology of the THF hydrate crystals. (Link to Publication Site) ● Publication site (DOI): 10.1021/ef300178u (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1021/ef300178u (DOI: 10.1021/ef300178u)
33.	Tomohiro Hirano, Takahiro Furutani, Miyuki Oshimura and Koichi Ute : Syndiotactic- and Heterotactic-Specific Radical Polymerizations of N-n-Propyl-α-fluoroacrylamide and Phase-Transition Behaviors of Aqueous Solutions of Poly(N-n-propyl-α-fluoroacrylamide), Journal of Polymer Science Part A: Polymer Chemistry, Vol.50, No.12, 2471-2483, 2012. (Summary) Radical polymerization of N-n-propyl-α-fluoroacrylamide (NNPFAAm) was investigated in several solvents at low temperatures in the presence or absence of Lewis bases, Lewis acids, alkyl alcohols, silyl alcohols, or fluorinated alcohols. Different effects of solvents and additives on stereospecificity were observed in the radical polymerizations of NNPFAAm and its hydrocarbon analogs such as N-isopropylacrylamide (NIPAAm) and N-n-propylacrylamide (NNPAAm); for instance, syndiotactic (and heterotactic) specificities were induced in radical polymerization of NNPFAAm in polar solvents (and in toluene in the presence of alkyl and silyl alcohols), whereas isotactic (and syndiotactic) specificities were induced in radical polymerizations of the hydrocarbon analogs under the corresponding conditions. In contrast, heterotactic specificity induced by fluorinated alcohols was further enhanced in radical polymerization of NNPFAAm. The effects of stereoregularity on the phase-transition behaviors of aqueous solutions of poly(NNPFAAm) were also investigated. Different tendencies in stereoregularity were observed in aqueous solutions of poly(NNPFAAm)s from those in solutions of the hydrocarbon analogs such as poly(NIPAAm) and poly (NNPAAm). (Tokushima University Institutional Repository) ● Metadata: 115217 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.26024 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.26024 (Tokushima University Institutional Repository: 115217, DOI: 10.1002/pola.26024)
34.	Tomohiro Hirano, Takahiro Kamikubo and Koichi Ute : Syndiotactic specific radical polymerization of N-isopropylacrylamide in toluene at low temperatures in the presence of silyl alcohols, Polymer International, Vol.61, No.6, 966-970, 2012. (Summary) The radical polymerization of N-isopropylacrylamide was carried out in toluene at low temperatures in the presence of silyl alcohols, such as triethylsilanol. Poly(N-isopropylacrylamide) with a racemo dyad content of 75% was obtained at - 80 °C with a 4:1 triethylsilanol to monomer ratio loading. NMR analysis suggests that the mechanism for syndiotactic induction, in the presence of silyl alcohols, may be similar to that observed with alkyl alcohols. In this case, a 1:2 complex formation, via hydrogen bonding interactions, leads to the induction of syndiotactic specificity. (Tokushima University Institutional Repository) ● Metadata: 115338 (Link to Publication Site) ● Publication site (DOI): 10.1002/pi.4166 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pi.4166 (Tokushima University Institutional Repository: 115338, DOI: 10.1002/pi.4166)
35.	Tomohiro Hirano, Hiroaki Yamamoto and Koichi Ute : Effects of chemical composition and stereoregularity on phase-transition behaviors of aqueous solutions of copolymers composed of N-isopropylacrylamide and N-n-propylacrylamide, Polymer, Vol.52, No.23, 5277-5281, 2011. (Summary) Radical copolymerizations of N-isopropylacrylamide (NIPAAm) and N-n-propylacrylamide (NNPAAm) in various ratios were carried out in toluene at -40 °C in the presence of 3-methyl-3-pentanol to prepare syndiotactic copolymers with racemo dyad contents of ca. 70%. It was revealed that copolymers containing more than 92.5 mol% NNPAAm units exhibited large phase-transition hysteresis of their aqueous solutions. Sequence analysis suggested that intramolecular hydrogen-bonding of contiguous NNPAAm units in syndiotactic stereosequences in the dehydrated state were responsible for induction of the large hysteresis. (Tokushima University Institutional Repository) ● Metadata: 115214 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2011.09.039 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2011.09.039 (Tokushima University Institutional Repository: 115214, DOI: 10.1016/j.polymer.2011.09.039)
36.	Tomohiro Hirano, Akihiro Morikami and Koichi Ute : Control of Stereospecificity in the Radical Polymerization of N-Methyl-N-(2-pyridyl)acrylamide by Conformational Switching of the Monomer with Protonation, Journal of Polymer Science Part A: Polymer Chemistry, Vol.49, No.19, 4164-4171, 2011. (Summary) Radical polymerization of N-methyl-N-(2-pyridyl)acrylamide (MPyAAm) was carried out in dichloromethane at low temperatures in the presence of trifluoroacetic acid (TFA). The m dyad contents of the polymers obtained at 0 °C increased linearly from 37 to 60% with an increase in the [TFA]0/[MPyAAm]0 ratio from 1 to 5. Nuclear magnetic resonance (NMR) analysis of MPyAAm TFA mixtures in dichloromethane-d2 revealed that the favorable conformation in terms of the pyridyl group to the carbonyl group in MPyAAm switched from s-trans to s-cis by protonation. The results suggest that controlling the conformation of MPyAAm resulted in control of the stereospecificity in radical polymerization of the monomer. (Tokushima University Institutional Repository) ● Metadata: 115339 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.24858 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.24858 (Tokushima University Institutional Repository: 115339, DOI: 10.1002/pola.24858)
37.	Tomohiro Hirano, Akihiro Morikami, Yasuhiro Fujioka and Koichi Ute : Effect of a combination of hexamethylphosphoramide and alkyl alcohol on the stereospecificity of radical polymerization of N-isopropylacrylamide, Polymer, Vol.52, No.3, 629-634, 2011. (Summary) Radical polymerization of N-isopropylacrylamide (NIPAAm) was investigated at low temperatures in the presence of both hexamethylphosphoramide (HMPA) and alkyl alcohols. Although HMPA and alkyl alcohols separately induced syndiotactic specificity in NIPAAm polymerization in toluene at low temperatures, a combination of HMPA and less bulky alkyl alcohols, such as methanol and ethanol, was found to induce isotactic specificity at -80 °C. NMR analysis of mixtures of NIPAAm, ethanol and HMPA suggested the formation of a 1:1:1 complex through O H O=C and N H O=P hydrogen bonding. It is believed that the steric effect of HMPA enhanced by cooperative hydrogen bonding was responsible for the combined effect of HMPA and alkyl alcohols in inducing isotactic specificity. (Tokushima University Institutional Repository) ● Metadata: 115340 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2010.12.035 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2010.12.035 (Tokushima University Institutional Repository: 115340, DOI: 10.1016/j.polymer.2010.12.035)
38.	Tomohiro Hirano, Ryosuke Yamaoka, Takamasa Miyazaki and Koichi Ute : Stereospecific Radical Polymerization of N-tert-Butoxycarbonylacrylamide in the Presence of Fluorinated Alcohols, Journal of Polymer Science Part A: Polymer Chemistry, Vol.48, No.24, 5718-5726, 2010. (Summary) Radical polymerization of N-tert-butoxycarbonylacrylamide (NBocAAm) in toluene at low temperatures in the presence of the fluorinated alcohols, 2,2,2-trifluoroethanol, 1,1,1,3,3,3-hexafluoro-2-propanol, and nonafluoro-tert-butanol, afforded atactic, heterotactic, and syndiotactic polymers, respectively. NMR analysis revealed that the fluorinated alcohols formed hydrogen bonding-assisted complexes with NBocAAm, with different structures. The difference in the structures of the complexes was responsible for the differences in the induced stereospecificities. Based on the structures of the complexes between NBocAAm and the fluorinated alcohols, mechanisms for the three kinds of stereospecific radical polymerizations are proposed. (Tokushima University Institutional Repository) ● Metadata: 115341 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.24373 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-78649545608 (Tokushima University Institutional Repository: 115341, DOI: 10.1002/pola.24373, Elsevier: Scopus)
39.	Mohamed Reda Berber, Hironori Mori, Inas Hazzaa Hafez, Keiji Minagawa, Masami Tanaka, Takuro Niidome, Yoshiki Katayama, Atsushi Maruyama, Tomohiro Hirano, Yasushi Maeda and Takeshi Mori : Unusually Large Hysteresis of Temperature-Responsive Poly(N-Ethyl-2-Propionamidoacrylamide) Studied by Microcalorimetry and FT-IR, The Journal of Physical Chemistry B, Vol.114, No.23, 7784-7790, 2010. (Summary) We reported here the full characterization of the hysteresis of the phase transition behavior of an aqueous solution of poly(N-ethyl-2-propionamidoacrylamide) (PNEPA), which has a unique alpha,alpha-disubstituted structure, by using microcalorimetry and FT-IR. Phase transition temperatures near the thermodynamic equilibrium were determined by extrapolating the scanning rate of the microcalorimetry to zero. The calculated hysteresis from the phase transition temperature was unusually very large (approximately 8 degrees C). FT-IR analysis indicated that the large hysteresis of PNEPA resulted from a coupling of intra-/intermonomeric unit hydrogen bonds, which is known to occur in a beta-sheet of proteins but has never been reported in temperature-responsive polymers. The effects of the molecular weight and polymer concentration on the hysteresis were studied by using fractionated PNEPAs and it was found that a low molecular weight and a low concentration enhanced the hysteresis. (Keyword) Acrylic Resins / Calorimetry / Hydrogen Bonding / Molecular Weight / Phase Transition / Polymers / Spectroscopy, Fourier Transform Infrared / Temperature / Thermodynamics (Link to Publication Site) ● Publication site (DOI): 10.1021/jp102681q (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 20499912 ● Search Scopus @ Elsevier (PMID): 20499912 ● Search Scopus @ Elsevier (DOI): 10.1021/jp102681q (DOI: 10.1021/jp102681q, PubMed: 20499912)
40.	Takeshi Mori, Suguru Beppu, Mohamed Reda Berber, Hironori Mori, Takumi Makimura, Ayako Tsukamoto, Keiji Minagawa, Tomohiro Hirano, Masami Tanaka, Takuro Niidome, Yoshiki Katayama, Tatsuya Hirano and Yasushi Maeda : Design of Temperature-Responsive Polymers with Enhanced Hysteresis: α,α-Disubstituted Vinyl Polymers, Langmuir, Vol.26, No.12, 9224-9232, 2010. (Summary) Three temperature-responsive polymers which are alpha,alpha-disubstituted vinyl polymers having two amphiphilic groups (ethylamide or ethylester) per monomeric unit were designed. Two of these polymers showed unusually large hysteresis in their phase transition temperatures between a heating and a cooling process. This hysteresis resulted from the extremely slow kinetics of the dissolution process of the aggregated polymer chains in the cooling process due to intra- and interchain interactions including hydrogen bonding and hydrophobic interaction. The high density of the amphiphilic substituents on the polymer chain due to the alpha,alpha-disubstituted structure enhanced these intra- and interchain interactions. The large hysteresis was also observed in the volume change of a corresponding hydrogel. These new classes of temperature-responsive polymers are interesting materials because their large hystereses can be regarded as erasable memory function. (Keyword) Amides / Esters / Hydrogel / Polymers / Temperature / Transition Temperature / Vinyl Compounds (Link to Publication Site) ● Publication site (DOI): 10.1021/la100020t (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 20465233 ● Search Scopus @ Elsevier (PMID): 20465233 ● Search Scopus @ Elsevier (DOI): 10.1021/la100020t (DOI: 10.1021/la100020t, PubMed: 20465233)
41.	Tomohiro Hirano, Shou Nasu, Akihiro Morikami and Koichi Ute : The Effect of the N-Substituent s-trans to the Carbonyl Group of N-Methylacrylamide Derivatives on the Stereospecificity of Radical Polymerizations, Journal of Polymer Science Part A: Polymer Chemistry, Vol.47, No.23, 6534-6539, 2009. (Summary) Radical polymerization of N-methylacrylamide (NMAAm), N,N-dimethylacrylamide (DMAAm), and N-methyl-N-phenylacrylamide (MPhAAm) was investigated in toluene at low temperatures. Atactic, isotactic, and syndiotactic polymers were obtained by the polymerization of NMAAm, DMAAm, and MPhAAm, respectively, indicating that the stereospecificity of the radical polymerization of acrylamide derivatives depended on the N-substituents of the monomer used. From the viewpoint of monomer structure, the origin of the stereospecificity of radical polymerization of NMAAm derivatives is discussed. (Tokushima University Institutional Repository) ● Metadata: 115342 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.23696 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.23696 (Tokushima University Institutional Repository: 115342, DOI: 10.1002/pola.23696)
42.	Hikaru Momose, Kosuke Hattori, Tomohiro Hirano and Koichi Ute : Multivariate analysis of ¹³C NMR spectra of methacrylate copolymers and homopolymer blends, Polymer, Vol.50, No.15, 3819-3821, 2009. (Summary) 13C NMR spectra of copolymers of methyl methacrylate and tert-butyl methacrylate with various chemical compositions, the homopolymers of the two methacrylates, and blends of the homopolymers with various blend ratios were subjected to principal component analysis. The first and second principal components correlated chemical composition and the randomness of comonomer sequence, respectively. Chemical composition of the copolymers was determined with high accuracy and precision by the partial least-squares regression without assignment of individual resonance peaks. (Keyword) Chemical composition / Comonomer sequence / Principal component analysis / PATTERN-RECOGNITION / METHYL-METHACRYLATE / ACETATE COPOLYMERS / VINYL-ACETATE / CHEMICAL-DATA / SPECTROSCOPY / MICROSTRUCTURE / DISCRIMINATION / PREDICTION / QUALITY (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2009.05.048 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1572543026359752704 ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2009.05.048 (DOI: 10.1016/j.polymer.2009.05.048, CiNii: 1572543026359752704)
43.	Tomohiro Hirano, Hideaki Ishizu, Ryosuke Yamaoka, Koichi Ute and Tsuneyuki Sato : Metal-free isotactic-specific radical polymerization of N-alkylacrylamides with 3,5-dimethylpyridine N-oxide: The effect of the N-substituent and solvent on the isotactic specificity, Polymer, Vol.50, No.15, 3522-3527, 2009. (Summary) Radical polymerization of N-methylacrylamide (NMAAm), N-n-propylacrylamide, N-isopropylacrylamide (NIPAAm) and N-benzylacrylamide was investigated in CHCl3, CH2Cl2 and CH3CN, in the presence of 3,5-dimethylpyridine N-oxide (35DMPNO) to examine the effects of the N-substituent and the solvent on the isotactic specificity induced by 35DMPNO. With addition of 35DMPNO to radical polymerization of N-alkylacrylamides in CHCl3, isotactic specificity was significantly induced in NIPAAm polymerization but only slightly induced in NMAAm polymerization. Furthermore, mixed solvents of CH3CN and halomethanes such as CHCl3 and CH2Cl2 enhanced the ability of 35DMPNO to induce isotactic specificity, and poly(NIPAAm) with 74% meso dyad was obtained. (Tokushima University Institutional Repository) ● Metadata: 115343 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2009.05.053 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2009.05.053 (Tokushima University Institutional Repository: 115343, DOI: 10.1016/j.polymer.2009.05.053)
44.	Tomohiro Hirano, Takahiro Kamikubo, Yuya Okumura, Yoichi Bando, Ryosuke Yamaoka, Takeshi Mori and Koichi Ute : Heterotactic-specific radical polymerization of N-isopropylacrylamide and phase transition behavior of aqueous solution of heterotactic poly(N-isopropylacrylamide), Journal of Polymer Science Part A: Polymer Chemistry, Vol.47, No.10, 2539-2550, 2009. (Summary) Radical polymerization of N-isopropylacrylamide (NIPAAm) in toluene at low temperatures, in the presence of fluorinated-alcohols, produced heterotactic polymer comprising an alternating sequence of meso and racemo dyads. The heterotacticity reached 70% in triads when polymerization was carried out at -40 °C using nonafluoro-tert-butanol as the added alcohol. NMR analysis revealed that formation of a 1:1 complex of NIPAAm and fluorinated-alcohol through C=O···H O hydrogen bonding induces the heterotactic specificity. A mechanism for the heterotactic-specific polymerization is proposed. Examination of the phase transition behavior of aqueous solutions of heterotactic poly(NIPAAm) revealed that the hysteresis of the phase transition between the heating and cooling cycles depended on the average length of meso dyads in poly(NIPAAm). (Tokushima University Institutional Repository) ● Metadata: 115344 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.23338 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.23338 (Tokushima University Institutional Repository: 115344, DOI: 10.1002/pola.23338)
45.	Tomohiro Hirano, Shuhei Masuda, Shou Nasu, Koichi Ute and Tsuneyuki Sato : Syndiotactic-specific radical polymerization of N,N-dimethylacrylamide in the presence of tartrates: A proposed mechanism for the polymerization, Journal of Polymer Science Part A: Polymer Chemistry, Vol.47, No.4, 1192-1203, 2009. (Summary) Radical polymerization of N,N-dimethylacrylamide (DMAAm) was investigated in the presence of tartrates, such as diethyl l-tartrate, diisopropyl l-tartrate, and di-n-butyl l-tartrate, in toluene at low temperatures. Syndiotactic polymers were obtained in the presence of tartrates, whereas isotactic polymers were obtained in the absence of tartrates. The syndiotactic-specificity increased with increasing amount of tartrates and with decreasing polymerization temperature. NMR analysis suggested that DMAAm and tartrates formed a 1:1 complex through double hydrogen bonding. A mechanism for the syndiotactic-specific radical polymerization of DMAAm is proposed. (Tokushima University Institutional Repository) ● Metadata: 115345 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.23226 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.23226 (Tokushima University Institutional Repository: 115345, DOI: 10.1002/pola.23226)
46.	Takeshi Mori, Tomohiro Hirano, Atsushi Maruyama, Yoshiki Katayama, Takuro Niidome, Yoichi Bando, Koichi Ute, Shinji Takaku and Yasushi Maeda : Syndiotactic Poly(N-n-propylacrylamide) Shows Highly Cooperative Phase Transition, Langmuir, Vol.25, No.1, 48-50, 2009. (Summary) Syndiotactic poly(N-n-propylacrylamide)s (PNNPAM) with various racemo (r) diad contents were synthesized, and their phase transition behaviors were studied by high-sensitivity differential scanning calorimetry and FT-IR spectroscopy. The cooperativity of the phase transition increased with the increase in the r diad content. Compared with the atactic PNNPAM, the number of cooperative units, which shows the monomeric units length undergoing cooperative phase transition, increased 2.5- to 4-fold in the syndiotactic polymers. From the results of FT-IR spectroscopy and quantum chemical calculations, it was determined that the high cooperativity of the syndiotactic polymers resulted from local formation of an ordered structure in a dehydrated state. (Link to Publication Site) ● Publication site (DOI): 10.1021/la8034837 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 19072016 ● Search Scopus @ Elsevier (PMID): 19072016 ● Search Scopus @ Elsevier (DOI): 10.1021/la8034837 (DOI: 10.1021/la8034837, PubMed: 19072016)
47.	Tsuneyuki Sato, Makoto Hasegawa, Makiko Seno and Tomohiro Hirano : Radical polymerization behavior of diemthyl vinylphosphonate: homopolymerization and copolymerization with trimethoxyvinylsilane, Journal of Applied Polymer Science, Vol.109, No.6, 3746-3752, 2008. (Summary) Dialkyl vinylphosphonates such as dimethyl vinylphosphonate (DMVP) and diethyl vinylphosphonate were quantitatively polymerized with dicumyl peroxide (DCPO) at 130°C in bulk. The polymerization of DMVP with DCPO was kinetically studied in bulk by fourier transform near-infrared spectroscopy (FTNIR) and electron spin resonance (ESR) spectroscopy. The initial polymerization rate (Rp) was given by Rp = k[DCPO]0.5[DMVP]1.0 at 110°C, being the same as that of the conventional radical polymerization involving bimolecular termination. The overall activation energy of the polymerization was estimated to be 26.2 kcal/mol. The polymerization system involved ESR-observable propagating polymer radicals under the practical polymerization conditions. ESR-determined rate constants of propagation (kp) and termination (kt) were kp = 19 L/mol s and kt = 5.8 × 103 L/mol s at 110°C, respectively. The molecular weight of the resultant poly(DMVP)s was low (Mn = 3.4 - 3.5 × 103), because of the high chain transfer constant (Cm = 3.9 × 10-2 at 110°C) to the monomer. DMVP (M1) showed a considerably high reactivity in the radical copolymerization with trimethoxyvinylsilane (TMVS) (M2) at 110°C in bulk, giving an inorganic component-containing functional copolymer with potential flame-retardant properties; r1 = 1.6 and r2 = 0. (Link to Publication Site) ● Publication site (DOI): 10.1002/app.28626 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/app.28626 (DOI: 10.1002/app.28626)
48.	Misao Koyama, Tomohiro Hirano, Keiichi Ohno and Yukiteru Katsumoto : Molecular Understanding of the UCST-Type Phase Separation Behavior of a Stereocontrolled Poly(N-isopropylacrylamide) in Bis(2-methoxyethyl) Ether, The Journal of Physical Chemistry B, Vol.112, No.35, 10854-10860, 2008. (Summary) The upper critical solution temperature (UCST)-type phase separation of an isotactic-rich poly(N-isopropylacrylamide) (PNiPA) in bis(2-methoxyethyl) ether (diglyme) has been investigated by turbidity measurement and infrared (IR) spectroscopy. The IR spectra of stereocontrolled PNiPAs in various solvents have clearly indicated that the amide I bands do not directly reflect the tacticity of the polymer. The relative intensity of the amide I bands changes depending upon the molecular environment around the amide groups of PNiPA, which is influenced by the tacticity. During the UCST-type phase separation of the isotactic-rich PNiPA in diglyme, the amide I band at around 1625 cm-1 changes. To link the IR spectral change with the molecular information, quantum chemical calculations have been carried out for NiPA n-mers (n = 1-4) with an isotactic stereosequence. The result has suggested that the amide I band at around 1625 cm-1 arises from a helical structure formed by the isotactic stereosequences in the PNiPA main chain with the aid of intramolecular C O···H-N hydrogen bonding. The experimental IR spectra have revealed that the helical structures are unfolded as the temperature rises. The folding and unfolding of the isotactic sequences in the main chain may induce the thermal change in the solubility of the isotactic rich PNiPA in diglyme, resulting in the UCST-type phase separation of the solution. (Link to Publication Site) ● Publication site (DOI): 10.1021/jp800759w (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 18686997 ● Search Scopus @ Elsevier (PMID): 18686997 ● Search Scopus @ Elsevier (DOI): 10.1021/jp800759w (DOI: 10.1021/jp800759w, PubMed: 18686997)
49.	Tomohiro Hirano, Takamasa Miyazaki and Koichi Ute : Synthesis of heterotactic and syndiotactic polyacrylamides via stereospecific radical polymerization of N-tert-butoxycarbonylacrylamide in the presence of fluorinated alcohols, Journal of Polymer Science Part A: Polymer Chemistry, Vol.46, No.16, 5698-5701, 2008. (Summary) Radical polymerization of a new protected monomer, N-tert-butoxycarbonylacrylamide, in toluene at -40 or 0 °C in the presence of fluorinated alcohols was investigated. The obtained polymers were successfully converted into polyacrylamide under acidic conditions. Further, it was revealed that atactic, heterotactic, and syndiotactic polymers were obtained with the addition of trifluoroethanol, 1,1,1,3,3,3-hexafluoro-2-propanol, and nonafluoro-tert-butanol, respectively. To the best of our knowledge, these are the first syntheses of heterotactic and syndiotactic polyacrylamides. (Tokushima University Institutional Repository) ● Metadata: 115346 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.22864 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.22864 (Tokushima University Institutional Repository: 115346, DOI: 10.1002/pola.22864)
50.	Tomohiro Hirano, Kimihiko Nakamura, Takahiro Kamikubo, Satoshi Ishii, Kanami Tani, Takeshi Mori and Tsuneyuki Sato : Hydrogen-bond-assisted syndiotactic-specific radical polymerizations of N-alkylacrylamides: The effect of the N-substituents on the stereospecificities and unusual large hysteresis in the phase-transition behavior of aqueous solution of syndiotactic poly(N-n-propylacrylamide), Journal of Polymer Science Part A: Polymer Chemistry, Vol.46, No.13, 4575-4583, 2008. (Summary) The radical polymerizations of N-alkylacrylamides, such as N-methyl-(NMAAm), N-n-propyl-(NNPAAm), N-benzyl-(NBnAAm), and N-(1-phenylethyl)acrylamides (NPhEAAm), at low temperatures were investigated in the absence or presence of hexamethylphosphoramide (HMPA) and 3-methyl-3-pentanol (3Me3PenOH), which induced the syndiotactic specificities in the radical polymerization of N-isopropylacrylamide (NIPAAm). In the absence of the syndiotactic-specificity inducers, the syndiotacticities of the obtained polymers gradually increased as the bulkiness of the N-substituents increased. Both HMPA and 3Me3PenOH induced the syndiotactic specificities in the NNPAAm polymerizations as well as in the NIPAAm polymerizations. The addition of 3Me3PenOH into the polymerizations of NMAAm significantly induced the syndiotactic specificities, whereas the tacticities of the obtained polymers were hardly affected by adding HMPA. In the polymerizations of bulkier monomers, such as NBnAAm and NPhEAAm, HMPA worked as the syndiotactic specificity inducer at higher temperatures, whereas 3Me3PenOH hardly influenced the stereospecificity. The phase-transition behaviors of the aqueous solutions of poly(NNPAAm)s were also investigated. It appeared that the poly (NNPAAm) with racemo dyad content of 70% exhibited unusual large hysteresis between the heating and cooling processes. (Tokushima University Institutional Repository) ● Metadata: 115347 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.22797 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.22797 (Tokushima University Institutional Repository: 115347, DOI: 10.1002/pola.22797)
51.	Tomohiro Hirano, Shuhei Masuda and Tsuneyuki Sato : Hydrogen-Bond-Assisted Syndiotactic-Specific Radical Polymerization of N,N-Dimethylacrylamide in the Presence of Tartrates, Journal of Polymer Science Part A: Polymer Chemistry, Vol.46, No.9, 3145-3149, 2008. (Summary) The radical polymerizations of N,N-dimethylacrylamide (DMAAm) at low temperatures in the presence of alcohol compounds were investigated. It was found that the addition of tartrates into the DMAAm polymerizations in toluene significantly induced the syndiotactic-specificity. In addition, both the yield and the molecular weights of the obtained polymers increased with the addition of tartrates. To the best of our knowledge, this is the first example of syndiotactic-specific radical polymerization of DMAAm. (Tokushima University Institutional Repository) ● Metadata: 115348 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.22643 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.22643 (Tokushima University Institutional Repository: 115348, DOI: 10.1002/pola.22643)
52.	Tomohiro Hirano, Takahiro Kamikubo, Yasuhiro Fujioka and Tsuneyuki Sato : Hydrogen-bond-assisted syndiotactic-specific radical polymerization of N-isopropylacrylamide: The solvent effect on the stereospecificity, European Polymer Journal, Vol.44, No.4, 1053-1059, 2008. (Summary) Radical polymerizations of N-isopropylacrylamide (NIPAAm) in several solvents at low temperatures in the absence or presence of hexamethylphosphoramide (HMPA) or 3-methyl-3-pentanol (3Me3PenOH) were examined. The isotacticities of the poly(NIPAAm)s obtained in the absence of HMPA and 3Me3PenOH at lower temperatures slightly increased as the polarities of the solvents used increased. The addition of HMPA significantly induced the syndiotactic-specificity even in polar solvents such as tetrahydrofuran and acetone, although the use of the solvents having proton-donating ability, such as chloroform, prevented the induction of the syndiotactic-specificity, even if their polarities are low. In the presence of 3Me3PenOH, a good correlation between the polarities of the solvents used and the syndiotacticities of the obtained poly(NIPAAm)s was observed, and poly(NIPAAm) with r = 73% was obtained using the toluene/methylcyclohexane mixed solvent. (Tokushima University Institutional Repository) ● Metadata: 115349 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.eurpolymj.2008.02.002 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.eurpolymj.2008.02.002 (Tokushima University Institutional Repository: 115349, DOI: 10.1016/j.eurpolymj.2008.02.002)
53.	Tomohiro Hirano, Hideaki Ishizu and Tsuneyuki Sato : Metal-free isotactic-specific radical polymerization of N-isopropylacrylamide with pyridine N-oxide derivatives: The effect of methyl substituents of pyridine N-oxide on the isotactic specificity and the proposed mechanism for the isotactic-specific radical polymerization, Polymer, Vol.49, No.2, 438-445, 2008. (Summary) The radical polymerizations of N-isopropylacrylamide (NIPAAm) in chloroform at low temperatures in the presence of pyridine N-oxide (PNO) derivatives were investigated. It was found that the methylation at meta-positions of PNO improved the isotactic specificity induced by PNO, whereas the methylation at ortho-positions prevented the induction of the isotactic specificity. NMR analysis revealed that NIPAAm and PNO derivatives formed predominantly 2:1 complex through a hydrogen-bonding interaction. Furthermore, the induction of the isotactic specificity was attributed to the conformationally limited propagating radicals. Based on these findings, the mechanism of the isotactic-specific radical polymerization was discussed. (Tokushima University Institutional Repository) ● Metadata: 115350 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2007.11.053 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2007.11.053 (Tokushima University Institutional Repository: 115350, DOI: 10.1016/j.polymer.2007.11.053)
54.	Tomohiro Hirano, Takahiro Kamikubo, Yuya Okumura and Tsuneyuki Sato : Heterotactic poly(N-isopropylacrylamide) prepared via radical polymerization in the presence of fluorinated alcohols, Polymer, Vol.48, No.17, 4921-4925, 2007. (Summary) Radical polymerization of N-isopropylacrylamide in toluene at -40 °C in the presence of fourfold amounts of fluorinated alcohols was investigated. The 13C NMR analysis of the obtained polymers suggested that the addition of fluorinated alcohols induced heterotactic specificity in radical polymerization of NIPAAm, although syndiotactic poly(NIPAAm)s were obtained by adding alkyl alcohols as we have previously reported. To the best of our knowledge, this is the first synthesis of heterotactic poly(NIPAAm). (Tokushima University Institutional Repository) ● Metadata: 115353 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2007.06.059 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1573105976304267776 ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2007.06.059 (Tokushima University Institutional Repository: 115353, DOI: 10.1016/j.polymer.2007.06.059, CiNii: 1573105976304267776)
55.	Tsuneyuki Sato, Kazuki Nomura, Tomohiro Hirano and Makiko Seno : Initiator-Fragment Incorporation Radical Polymerization of Diallyl Phthalate: Kinetics, Formation of Hyperbranched Polymer, and Iridescent Porous Film Thereof, Journal of Applied Polymer Science, Vol.102, No.1, 408-415, 2006. (Summary) Diallyl phthalate (DAP) was polymerized in toluene using dimethyl 2,2 -azobisisobutyrate (MAIB) of high concentrations (0.1 0.9 mol/L) as initiator. The polymerization of DAP of 1.50 mol/L with MAIB of 0.50 mol/L proceeded homogeneously at 80°C without gelation to give soluble polymers in a high yield of 93%. Kinetic results of the homogeneous polymerization at 80°C suggest significant contributions of the degradative chain transfer and the primary radical termination as shown by the rate equation, Rp = k [MAIB]0.8[DAP]1.0 (Rp = polymerization rate). The polymer formed in the polymerization of DAP (1.30 mol/L) with MAIB (0.50 mol/L) at 80°C for 8 h consisted of the DAP units with (17 mol %) and without (47 mol %) double bond and the methoxycarbonylpropyl group (36 mol %) as MAIB-fragment. The large fraction of the incorporated initiator-fragment as terminal group indicates that the polymer has a hyperbranched structure. The film cast from a solution of the hyperbranched poly(DAP) in tetrahydrofuran showed an iridescent color. The confocal scanning laser microscope image of the film revealed that the iridescent film contained the pores of about 1 μm arranged in an ordered array. (Keyword) radical polymerization / kinetics / hyperbranched / divinyl monomer / crosslink / viscosity / ETHYLENE-GLYCOL DIMETHACRYLATE / DIVINYL ADIPATE / ALLYL MONOMERS / CHAIN-TRANSFER / COPOLYMERIZATION / POLYSTYRENE / FABRICATION / SCAFFOLDS / ARRAYS / ETHER (Link to Publication Site) ● Publication site (DOI): 10.1002/app.24036 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/app.24036 (DOI: 10.1002/app.24036)
56.	Tomohiro Hirano, Yuya Okumura, Makiko Seno and Tsuneyuki Sato : Remarkable effect of hydrogen-bonding interaction on stereospecificity in the radical polymerization of `N`-vinylacetamide, European Polymer Journal, Vol.42, No.9, 2114-2124, 2006. (Summary) Radical polymerization of N-vinylacetamide (NVA) in toluene at low temperatures was investigated. It was found that the addition of Lewis bases or alcohol compounds significantly influenced stereospecificity in NVA polymerization. For example, syndiotacticity increased from 25% to 34% by adding tri-n-butyl phosphate at -40 °C. Mono-alcohol compounds increased heterotacticity and heterotactic poly(NVA) with mr triad content of 58% was obtained at -40 °C in the presence of 1,1,1,3,3,3-hexafluoro-2-propanol. Furthermore, isotactic poly(NVA) with mm triad = 49% was obtained at -60 °C in the presence of diethyl l-tartrate. The NMR analysis demonstrated that complex formation between NVA monomer and the added agents, through hydrogen-bonding interaction, played an important role to induce the stereospecificity. (Tokushima University Institutional Repository) ● Metadata: 115354 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.eurpolymj.2006.03.023 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.eurpolymj.2006.03.023 (Tokushima University Institutional Repository: 115354, DOI: 10.1016/j.eurpolymj.2006.03.023)
57.	Tomohiro Hirano, Yuya Okumura, Hiroko Kitajima, Makiko Seno and Tsuneyuki Sato : Dual roles of alkyl alcohols as syndiotactic-specificity inducers and accelerators in the radical polymerization of N-isopropylacrylamide and some properties of syndiotactic poly(N-isopropylacrylamide), Journal of Polymer Science Part A: Polymer Chemistry, Vol.44, No.15, 4450-4460, 2006. (Summary) The effects of simple alkyl alcohols on the radical polymerization of N-isopropylacrylamide in toluene at low temperatures were investigated. We succeeded in the induction of syndiotactic specificity and the acceleration of polymerization reactions at the same time by adding simple alkyl alcohols such as 3-methyl-3-pentanol (3Me3PenOH) to N-isopropylacrylamide polymerizations. The dyad syndiotacticity increased with a decrease in the temperature and an increase in the bulkiness of the added alcohol and reached up to 71% at -60 °C in the presence of 3Me3PenOH. With the assistance of NMR analysis, it was revealed that the alcohol compounds played dual roles in this polymerization system; an alcohol compound coordinating to the N[BOND]H proton induced syndiotactic specificity, and that hydrogen-bonded to the C[DOUBLE BOND]O oxygen accelerated the polymerization reaction. The effect of syndiotacticity on the properties of poly(N-isopropylacrylamide)s was also examined in some detail. (Tokushima University Institutional Repository) ● Metadata: 115226 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.21546 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1570854176478198656 ● Search Scopus @ Elsevier (DOI): 10.1002/pola.21546 (Tokushima University Institutional Repository: 115226, DOI: 10.1002/pola.21546, CiNii: 1570854176478198656)
58.	Tsuneyuki Sato, Tsukasa Nakamura, Makiko Seno and Tomohiro Hirano : Soluble hyperbranched copolymer via initiator-fragment incorporation radical copolymerization using a trivinyl monomer, Polymer, Vol.47, No.13, 4630-4637, 2006. (Summary) The initiator-fragment incorporation radical polymerization was extended to a copolymerization system of a trivinyl monomer. The copolymerization of trimethylolpropane trimethacrylate (TMPTM) as a trivinyl monomer with α-methylstyrene (MSt) was examined at 70 and 80 °C in toluene using dimethyl 2,2 -azobisisobutyrate (MAIB) of high concentrations as initiator. When the concentrations of TMPTM, MSt and MAIB were 0.30, 0.60 and 0.50 mol/l, the copolymerization proceeded homogeneously without gelation at 80 °C to yield soluble hyperbranched copolymer in a yield of 65%. (Keyword) initiator-fragment incorporation radical polymerization / trivinyl monomer / hyperbranched polymer / POROUS FILM FORMATION / N-ISOPROPYLACRYLAMIDE / DYE-SOLUBILIZATION / DIVINYL ADIPATE / POLYMERS / POLYMERIZATION / TRANSITION / STABILIZATION / NANOPARTICLE / ACID) (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2006.02.096 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2006.02.096 (DOI: 10.1016/j.polymer.2006.02.096)
59.	Tomohiro Hirano, Naoki Higashida, Hongwei Wang, Makiko Seno and Tsuneyuki Sato : Synthesis and Characterization of Soluble Hyperbranched Polymer via Initiator-Fragment Incorporation Radical Polymerization of Divinylbenzene with Dimethyl 2,2'-Azobisisobutyrate, Journal of Applied Polymer Science, Vol.100, No.1, 664-670, 2006. (Summary) The homopolymerization of divinylbenzene (DVB) as an excellent crosslinker (0.20 mol/L) with dimethyl 2,2 -azobisisobutyrate (MAIB) proceeded homogeneously without any gelation at 80°C in benzene when the MAIB concentrations as high as 0.30 0.50 mol/L were used, yielding soluble polymers. In the polymerization at the concentrations of [DVB] = 0.20 mol/L and [MAIB] = 0.50 mol/L, the polymer yield increased with time and leveled off over 90 min. The vinyl groups of DVB were observed to be almost completely consumed in about 80 min, by FT near-IR spectroscopic analysis. The polymer formed in the polymerization for 2 h consisted of 46 mol % of DVB unit and 54 mol % of the methoxycarbonylpropyl group as MAIB fragment, indicating that an initiator-fragment incorporation radical polymerization proceeds in the present polymerization. The polymer was soluble in benzene, tetrahydrofuran, ethyl acetate, chloroform, acetone, and N,N-dimethylformamide, while it was insoluble in n-hexane, acetonitrile, dimethyl sulfoxide, methanol, and water. (Keyword) radical polymerization / branched / ESR / EPR / crosslinking / polystyrene / COPOLYMERIZATION / ETHER (Link to Publication Site) ● Publication site (DOI): 10.1002/app.23393 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/app.23393 (DOI: 10.1002/app.23393)
60.	Tsuneyuki Sato, Atsushi Ono, Tomohiro Hirano and Makiko Seno : Initiator-fragment incorporation radical copolymerization of vinyl acetate and 1,2-polybutadiene as a multivinyl monomer, Journal of Polymer Science Part A: Polymer Chemistry, Vol.44, No.7, 2328-2337, 2006. (Summary) The copolymerization of vinyl acetate (VAc) with 1,2-polybutadiene (1,2-PB; 85.5% 1,2-units and 14.5% 1,4-units) as a multivinyl monomer was carried out at 80 °C in dioxane with dimethyl 2,2 -azobisisobutyrate (MAIB) at high concentrations (0.10 0.50 mol/L) as an initiator. The copolymerization of 1,2-PB [0.80 mol/L (monomer unit)] and VAc (1.20 mol/L) with MAIB (0.30 mol/L) for 4 h proceeded homogeneously without gelation to yield a soluble copolymer. The resulting copolymer was divided into methanol- and n-hexane-insoluble parts, of which the yields based on the total weight of the comonomers and initiator were 46 and 20%, respectively. The cast film from a chloroform solution of the methanol-insoluble part contained spherical pores organized in a hexagonal way with a monodisperse pore size of 3 μm. The copolymer molecules seemed to be arranged in an ordered way on the surface layer of the pores, as shown by an optical microscopy image under crossed polarizers. (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.21351 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.21351 (DOI: 10.1002/pola.21351)
61.	Tsuneyuki Sato, Kazuki Nomura, Tomohiro Hirano and Makiko Seno : Hyperbranched Polymer through Initiator-Fragment Incorporation Radical Copolymerization of Divinyl Adipate with Allyl Acetate: Synthesis, Characterization, Dye Solubilization, Metal-Nanoparticle Stabilization, and Porous Film Formation, Polymer Journal, Vol.38, No.3, 240-249, 2006. (Summary) The copolymerization of divinyl adipate (DVA) as an effective cross-linker with allyl acetate (AAc) as a degradative chain transfer reagent was carried out at 70 and 80 °C in benzene using dimethyl 2,2 -azobisisobutyrate (MAIB) of high concentrations as initiator. When the MAIB concentration as high as 0.60 mol/L was used, the copolymerization of DVA (0.20 mol/L) and AAc (0.50 mol/L) proceeded homogeneously without any gelation to give soluble copolymers in a yield of about 30% based on the total weight of DVA, AAc, and MAIB. The copolymer formed in the copolymerization at 80 °C for 6 h consisted of the DVA units with (3 mol %) and without (24 mol %) double bond, the AAc unit (35 mol %), and the methoxycarbonylpropyl group (38 mol %) from MAIB. Such a large fraction of the incorporated initiator-fragment as terminal group indicates that the copolymer has a hyperbranched structure. The copolymer exhibited potentials in solubilization of Rhodamine 6G as a dye probe and stabilization of metal nanoparticles. A porous film was obtained simply by casting a copolymer solution in THF. (Keyword) Radical Copolymerization / Hyperbranched Polymer / Divinyl Monomer / Dye Solubilization / Metal Nanoparticle Stabilization / Porous Film (Link to Publication Site) ● Publication site (DOI): 10.1295/polymj.38.240 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1523951030678964480 ● Search Scopus @ Elsevier (DOI): 10.1295/polymj.38.240 (DOI: 10.1295/polymj.38.240, CiNii: 1523951030678964480)
62.	Tsuneyuki Sato, Hiroki Nobutane, Tomohiro Hirano and Makiko Seno : Hyperbranched Acrylate Copolymer via Initiator-Fragment Incorporation Radical Copolymerization of Divinylbenzene and Ethyl Acrylate: Synthesis, Characterization, Hydrolysis, Dye-Solubilization, Ag Particle-Stabilization, and Porous Film Formation, Macromolecular Materials and Engineering, Vol.291, No.2, 162-172, 2006. (Summary) Soluble hyperbranched acrylate copolymers were prepared by the copolymerization of divinylbenzene (0.10 mol · L-1) and ethyl acrylate (0.50 mol · L-1) using dimethyl 2,2 -azoisobutyrate of high concentrations (0.30 0.50 mol · L-1) as initiator at 70 and 80 °C in benzene. The copolymer formed at 80 °C for 1 h showed the weight-average molecular weight of 2.5 × 105, the small radius of gyration of 10 nm, the low second virial coefficient of 5.7 × l0-7 mL · g-2 as shown by the MALLS measurements at 25 °C in tetrahydrofuran, and also the very low intrinsic viscosity of 0.10 dL · g-1 at 30 °C in benzene. (Link to Publication Site) ● Publication site (DOI): 10.1002/mame.200500327 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/mame.200500327 (DOI: 10.1002/mame.200500327)
63.	Tomohiro Hirano, Hiroko Kitajima, Makiko Seno and Tsuneyuki Sato : Hydrogen-bond-assisted stereocontrol in the radical polymerization of N-isopropylacrylamide with bidentate Lewis base, Polymer, Vol.47, No.2, 539-546, 2006. (Summary) Radical polymerization of N-isopropylacrylamide (NIPAAm) in toluene was investigated in the presence of bidentate Lewis base such as diphosphonates. Isotacticity of the obtained poly(NIPAAm)s slightly increased at -80 °C, whereas syndiotactic-rich poly(NIPAAm)s were obtained at -40 0 °C. This result corresponded to the results observed in the presence of primary alkyl phosphates. NMR analysis revealed that NIPAAm monomer and tetraisopropyl methylenebisphosphonate formed mono-binding hydrogen-bond-assisted complex at 0 °C, but a chelate complex at -80 °C. Thus, it was concluded that the stereospecificity in NIPAAm polymerization strongly depended on the complexation mode of the added bidentate Lewis base. (Keyword) hydrogen bond / stereospecific radical polymerization / chelate complex / ESTER GROUP / SYNDIOTACTIC-SPECIFICITY / anionic polymerization / ALKYL PHOSPHATE / POLY(N-ISOPROPYLACRYLAMIDE) / METHACRYLATES / ACRYLAMIDES / ACRYLATES / MONOMER / ACIDS (Tokushima University Institutional Repository) ● Metadata: 115967 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2005.11.057 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-30144435068 (Tokushima University Institutional Repository: 115967, DOI: 10.1016/j.polymer.2005.11.057, Elsevier: Scopus)
64.	Makiko Seno, Makoto Hasegawa, Tomohiro Hirano and Tsuneyuki Sato : Radical Polymerization Behavior of Trimethoxyvinylsilane, Journal of Polymer Science Part A: Polymer Chemistry, Vol.43, No.23, 5864-5871, 2005. (Summary) Trimethoxyvinylsilane (TMVS) was quantitatively polymerized at 130 °C in bulk, using dicumyl peroxide (DCPO) as initiator. The polymerization of TMVS with DCPO was kinetically studied in dioxane by Fourier transform near-infrared spectroscopy. The overall activation energy of the bulk polymerization was estimated to be 112 kJ/mol. The initial polymerization rate (Rp) was expressed by Rp = k[DCPO]0.6[TMVS]1.0 at 120 °C, being closely similar to that of the conventional radical polymerization involving bimolecular termination. The polymerization system involved electron spin resonance (ESR) spectroscopically observable polymer radicals under the actual polymerization conditions. ESR-determined apparent rate constants of propagation and termination were 13 L/mol s and 3.1 × 104 L/mol s at 120 °C, respectively. The molecular weight of the resulting poly(TMVS)s was low (Mn = 2.0 4.4 × 103), because of the high chain transfer constant (Cmtr = 4.2 × 10-2 at 120 °C) to the monomer. The bulk copolymerization of TMVS (M1) and vinyl acetate (M2) at 120 °C gave the following copolymerization parameters: rl = 1.4, r2 = 0.24, Q1 = 0.084, and e1 = +0.80. (Keyword) chain transfer / copolymerization / ESR spectrum / kinetics / radical polymerization / rate constants of propagation and termination / trimethoxyvinylsilane / ELECTRON-SPIN-RESONANCE / MONOMER REACTIVITY RATIOS / COPOLYMERIZATION / SPECTROSCOPY / VINYLSILANES (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.21026 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.21026 (DOI: 10.1002/pola.21026)
65.	Tomohiro Hirano, Hideaki Ishizu, Makiko Seno and Tsuneyuki Sato : Hydrogen-bond-assisted isotactic-specific radical polymerization of N-isopropylacrylamide with pyridine N-oxide, Polymer, Vol.46, No.24, 10607-10610, 2005. (Summary) Radical polymerization of N-isopropylacrylamide (NIPAAm) in CHCl3 at low temperatures in the presence of pyridine N-oxide (PNO) was investigated. An isotactic poly(NIPAAm) with meso diad content of 61% was successfully prepared at -60 °C in the presence of a two-fold amount of PNO. Thermodynamic analysis suggested that the isotactic-specificity was entropically induced, probably due to conformational fixation near the propagating chain-end through coordination by PNO. (Tokushima University Institutional Repository) ● Metadata: 115972 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2005.09.025 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2005.09.025 (Tokushima University Institutional Repository: 115972, DOI: 10.1016/j.polymer.2005.09.025)
66.	Tomohiro Hirano, Keisuke Tanaka, Hongwei Wang, Makiko Seno and Tsuneyuki Sato : Effect of Nitrobenzene on Initiator-Fragment Incorporation Radical Polymerization of Divinylbenzene with Dimethyl 2,2'-Azobisisobutyrate, Polymer, Vol.46, No.21, 8964-8972, 2005. (Summary) The polymerization of divinylbenzene (DVB) with dimethyl 2,2 -azobisisobutyrate (MAIB) was conducted at 70 and 80 °C in benzene in the presence of nitrobenzene (NB) as a retarder. When the concentrations of DVB, MAIB, and NB were 0.45, 0.50, and 0.50 mol/l, respectively, the polymerization proceeded without any gelation to yield soluble polymers. The polymer yield (up to 65%) and the molecular weight (Mn=1.5 4.2×l04 at 70 °C and 1.3 3.9×l04 at 80 °C) increased with time. The polymer formed in the polymerization at 80 °C for 4 h consisted of the DVB units with (4 mol%) and without double bond (41 mol%), methoxycarbonylpropyl group as MAIB-fragment (48 mol%), and NB unit (7 mol%). Incorporation of such a large number of the initiator-fragments as terminal groups in a polymer molecule indicates that the polymer is of a hyperbranched structure. (Keyword) divinylbenzene / kinetics / hyperbranched polymer / SOLUBLE HYPERBRANCHED POLYMER / ETHYLENE-GLYCOL DIMETHACRYLATE / COPOLYMERIZATION / ETHER (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2005.06.083 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2005.06.083 (DOI: 10.1016/j.polymer.2005.06.083)
67.	Tomohiro Hirano, Hiroko Kitajima, Satoshi Ishii, Makiko Seno and Tsuneyuki Sato : Hydrogen-bond-assisted stereocontrol in the radical polymerization of N-isopropylacrylamide with secondary alkyl phosphate: The effect of the bulkiness of the ester group, Journal of Polymer Science Part A: Polymer Chemistry, Vol.43, No.17, 3899-3908, 2005. (Summary) The addition of triisopropyl phosphate (TiPP) to radical polymerization of N-isopropylacrylamide (NIPAAm) in toluene induced a syndiotactic specificity that was enhanced by the polymerization temperature being lowered, whereas atactic polymers were obtained in the absence of TiPP, regardless of the temperature. Syndiotactic-rich poly(NIPAAm) with a racemo dyad content of 65% was obtained at -60 °C with a fourfold amount of TiPP, but almost atactic poly(NIPAAm)s were obtained by the temperature being lowered to -80 °C. This result contrasted with the result in the presence of primary alkyl phosphates, such as tri-n-propyl phosphate: the stereospecificity varied from syndiotactic to isotactic as the polymerization temperature was lowered. NMR analysis at -80 °C revealed that TiPP predominantly formed a 1:1 complex with NIPAAm, although primary alkyl phosphates preferentially formed a 1:2 complex with NIPAAm. Thus, a slight increase in the bulkiness of the added phosphates influenced the stoichiometry of the NIPAAm phosphate complex at lower temperatures, and consequently a drastic change in the effect on the stereospecificity of NIPAAm polymerization was observed. (Tokushima University Institutional Repository) ● Metadata: 115973 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.20883 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.20883 (Tokushima University Institutional Repository: 115973, DOI: 10.1002/pola.20883)
68.	Tomohiro Hirano, Hitomi Miki, Makiko Seno and Tsuneyuki Sato : Effect of Polymerization Conditions on the Syndiotactic-Specificity in Radical Polymerization of N-isopropylacrylamide and Fractionation of the Obtained Polymer According to the Stereoregularity, Polymer, Vol.46, No.15, 5501-5505, 2005. (Summary) Radical polymerization of N-isopropylacrylamide (NIPAAm) was examined in the presence of hexamethylphosphoramide (HMPA). The addition of an excess amount of HMPA induced syndiotactic-specificity that gradually enhanced as the feed monomer was consumed. The syndiotacticity of the obtained poly(NIPAAm)s was improved by increasing the [HMPA]0/[NIPAAm]0 ratio to five and prolonging the polymerization time to 96 h (racemo=72%). It was also revealed that more stereoregulated poly(NIPAAm) could be fractionated by reprecipitating the resulting polymers from hexane THF mixture. This result suggested that more stereoregulated poly(NIPAAm) showed a lower solubility than less stereoregulated poly(NIPAAm)s. Furthermore, unusual hysteresis was observed in transmittance analysis of an aqueous solution of the fractionated syndiotactic poly(NIPAAm). (Keyword) hydrogen bond / N-isopropylacrylamide / stereospecific radical polymerization / ENANTIOSELECTIVE DEPROTONATION REACTION / BIDENTATE LITHIUM AMIDES / STEREOSELECTIVE REACTIONS / POLY(N-ISOPROPYLACRYLAMIDE) / ACRYLAMIDES / MONOMER (Tokushima University Institutional Repository) ● Metadata: 115974 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2005.05.043 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2005.05.043 (Tokushima University Institutional Repository: 115974, DOI: 10.1016/j.polymer.2005.05.043)
69.	Makiko Seno, Takahiro Yamada, Hongwei Wang, Tomohiro Hirano and Tsuneyuki Sato : Kinetic Study of the Radical Polymerization Behavior of N-(1-Phenylethylaminocarbonyl)methacrylamide, Journal of Polymer Science Part A: Polymer Chemistry, Vol.43, No.10, 2013-2020, 2005. (Summary) Polymerization of N-(1-phenylethylaminocarbonyl)methacrylamide (PEACMA) with dimethyl 2,2 -azobisisobutyrate (MAIB) was kinetically studied in dimethyl sulfoxide (DMSO). The overall activation energy of the polymerization was estimated to be 84 kJ/mol. The initial polymerization rate (Rp) is given by Rp = k[MAIB]0.6[PEACMA]0.9 at 60 °C, being similar to that of the conventional radical polymerization. The polymerization system involved electron spin resonance (ESR) spectroscopically observable propagating poly(PEACMA) radical under the actual polymerization conditions. ESR-determined rate constants of propagation and termination were 140 L/mol s and 3.4 × 104 L/mol s at 60 °C, respectively. The addition of LiCl accelerated the polymerization in N,N-dimethylformamide but did not in DMSO. The copolymerization of PEACMA(M1) and styrene(M2) with MAIB in DMSO at 60 °C gave the following copolymerization parameters; r1 = 0.20, r2 = 0.51, Q1 = 0.59, and e1 = +0.70. (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.20682 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.20682 (DOI: 10.1002/pola.20682)
70.	Tomohiro Hirano, Hitomi Miki, Makiko Seno and Tsuneyuki Sato : Direct Synthesis of Syndiotactic-Rich Poly(N-isopropylacrylamide) via Radical Polymerization of Hydrogen-Bond-Complexed Monomer, Polymer, Vol.46, No.11, 3693-3699, 2005. (Summary) Radical polymerization of N-isopropylacrylamide (NIPAAm) in toluene was investigated in the presence of hexamethylphosphoramide (HMPA). We succeeded in directly preparing syndiotactic-rich poly(NIPAAm), the syndiotacticity of which (r=70%) is the highest among those of radically-prepared poly(NIPAAm)s so far reported, by lowering polymerization temperature to -60 °C in the presence of a two-fold amount of HMPA. The NMR analysis revealed that the induced syndiotactic-specificity was ascribed to 1:1 complex formation between NIPAAm and HMPA. Furthermore, thermodynamic analysis described that the induced syndiotactic-specificity was enthalpically achieved. (Keyword) N-isopropylacrylamide / hydrogen bond / stereospecific radical polymerization / N-BUTYL ITACONATE / ISOPROPYLACRYLAMIDE / STEREOCONTROL / POLYMERS / FLUOROALCOHOLS (Tokushima University Institutional Repository) ● Metadata: 115975 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2004.12.060 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2004.12.060 (Tokushima University Institutional Repository: 115975, DOI: 10.1016/j.polymer.2004.12.060)
71.	Tomohiro Hirano, Hiroshi Ihara, Takashi Miyagi, Hongwei Wang, Makiko Seno and Tsuneyuki Sato : Formation of Soluble Hyperbranched Polymer Nanoparticles by Initiator-Fragment Incorporation Radical Polymerization of Ethylene Glycol Dimethacrylate, Macromolecular Chemistry and Physics, Vol.206, No.8, 860-868, 2005. (Summary) Ethylene glycol dimethacrylate (1) was polymerized at 70 and 80 °C in benzene using high concentrations of the initiator, dimethyl 2,2 -azobisisobutyrate (2). When the concentrations of 1 and 2 were 0.10 and 0.50 mol · L-1, respectively, the polymerization proceeded homogeneously without any gelation to yield a soluble polymer. The polymerization system involved ESR-detectable polymer radicals in high concentration (3.1 × 10-6 7.5 × 10-6 mol · L-1 at 70 °C). The polymer formed at 80 °C after 4 h consisted of units of 1 with (4 mol-%) and without (38 mol-%) a double bond and a methoxycarbonylpropyl group (58 mol-%) as the fragment of 2. Thus, the initiator-fragment incorporation radical polymerization proceeds in the present polymerization to yield a hyperbranched polymer. (Link to Publication Site) ● Publication site (DOI): 10.1002/macp.200400530 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/macp.200400530 (DOI: 10.1002/macp.200400530)
72.	Tsuneyuki Sato, Yukiko Arima, Makiko Seno and Tomohiro Hirano : Initiator-Fragment Incorporation Radical Polymerization of Divinyl Adipate with Dimethyl 2,2'-Azobis(isobutyrate): Kinetics and Formation of Soluble Hyperbranched Polymer, Macromolecules, Vol.38, No.5, 1627-1632, 2005. (Summary) The polymerization of divinyl adipate (DVA) as an effective cross-linker with dimethyl 2,2`-azobis(iosbutyrate) (MAIB) was performed at 70 and 80 °C in benzene. When the MAIB concentrations as high as 0.05-0.50 mol/L were used, the polymerization of DVA (0.30 mol/L) proceeded homogeneously at 80 °C without any gelation to give soluble polymers in the yields of 45-87%. Kinetic investigation on the homogeneous polymerization at 70 °C gave the following rate equation: Rp = k[MAIB]0.3[DVA]1.7 (Rp = initial polymerization rate), indicating a significant contribution of the primary radical termination. The overall activation energy of the polymerization was estimated to be 26.8 kcal/mol. The polymer formed in the polymerization of DVA (0.30 mol/L) with MAIB (0.50 mol/L) at 80 °C for 4 h was composed of the DVA units without (48 mol %) and with (8 mol %) double bond and the methoxycarbonylpropyl group (44 mol %) from MAIB. (Link to Publication Site) ● Publication site (DOI): 10.1021/ma040127z (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1021/ma040127z (DOI: 10.1021/ma040127z)
73.	Tomohiro Hirano, Satoshi Ishii, Hiroko Kitajima, Makiko Seno and Tsuneyuki Sato : Hydrogen-bond-assisted stereocontrol in the radical polymerization of N-isopropylacrylamide with primary alkyl phosphate: The effect of the chain length of the straight ester group, Journal of Polymer Science Part A: Polymer Chemistry, Vol.43, No.1, 50-62, 2005. (Summary) The radical polymerizations of N-isopropylacrylamide (NIPAAm) were carried out in toluene at low temperatures in the presence of phosphoric acid esters such as trimethyl phosphate, triethyl phosphate (TEP), tri-n-propyl phosphate, and tri-n-butyl phosphate (TBP). Syndiotactically rich poly(NIPAAm)s were obtained from -60 to 0 °C, and TEP provided the highest syndiotacticity (racemo dyad = 65%) at -40 °C. On the other hand, lowering the temperature reversed the stereoselectivity of the propagation reaction so that isotactically rich poly(NIPAAm)s were obtained at -80 °C. In particular, TBP exhibited the most isotactic specificity (meso dyad = 57%). Job's plots for NIPAAm TBP mixtures revealed that NIPAAm and TBP formed a 1:1 complex at 0 °C and a predominantly 1:2 complex at -80 °C through a hydrogen-bonding interaction. Therefore, the stereospecificity of NIPAAm polymerization should depend on the stoichiometry of the hydrogen-bond-assisted complex. Thus, the mechanism for this polymerization system was discussed. (Tokushima University Institutional Repository) ● Metadata: 115976 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.20475 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.20475 (Tokushima University Institutional Repository: 115976, DOI: 10.1002/pola.20475)
74.	Tsuneyuki Sato, Hiroshi Ihara, Tomohiro Hirano and Makiko Seno : Formation of soluble hyperbranched polymer through the initiator-fragment incorporation radical copolymerization of ethylene glycol dimethacrylate with N-methylmethacrylamide, Polymer, Vol.45, No.22, 7491-7498, 2004. (Summary) The copolymerization of ethylene glycol dimethacrylate (EGDMA) as a divinyl monomer with N-methylmethacrylamide (NMMAm) as a water-soluble monomer was carried out at 70 and 80 °C in N,N-dimethylformamide (DMF) using dimethyl 2,2 -azobisisobutyrate (MAIB) of high concentrations as initiator. When the concentrations of EGDMA, NMMAm and MAIB were 0.15, 0.50 and 0.35 mol/l, the copolymerization proceeded homogeneously with no gelation at 80 °C to give soluble copolymer in a yield of 50%. EGDMA was polymerized more rapidly than NMMAm as shown by Fourier-transform near infrared spectroscopy. The copolymer formed for 8 h consisted of 20 mol% of EGDMA unit, 47 mol% of NMMA unit and 33 mol% of methoxycarbonylpropyl group unit as MAIB-fragment. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.polymer.2004.09.019 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.polymer.2004.09.019 (DOI: 10.1016/j.polymer.2004.09.019)
75.	Hongwei Wang, Akiko Miyamoto, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : Radical polymerization of 2-methacryloyloxyethyl phosphorylcholine in water: kinetics and salt effects, European Polymer Journal, Vol.40, No.10, 2287-2290, 2004. (Summary) The homogeneous polymerization of 2-methacryloyloxyethyl phosphorylcholine (MPC) as betaine monomer with potassium peroxydisulfate (KPS) was kinetically investigated in water by means of FT-near IR spectroscopy. The overall activation energy of the polymerization was estimated to be 12.8 kcal/mol. The initial polymerization rate (Rp) at 40 °C was given by Rp = k[KPS]0.98[MPC]1.9. The presence of alkaline metal halides accelerated the polymerization. The larger the radius of metal cation or halide ion was, the larger the accelerating effect was. The accelerating salt effect was explained by interactions of salt ions with ionic moieties of the propagating polymer radical and/or the MPC monomer. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.eurpolymj.2004.06.012 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.eurpolymj.2004.06.012 (DOI: 10.1016/j.eurpolymj.2004.06.012)
76.	Tomohiro Hirano, Kousuke Higashi, Makiko Seno and Tsuneyuki Sato : Reaction control in radical polymerization of di-n-butyl itaconate utilizing a hydrogen-bonding interaction, Journal of Polymer Science Part A: Polymer Chemistry, Vol.42, No.19, 4895-4905, 2004. (Summary) Radical polymerizations of di-n-butyl itaconate (DBI) were carried out in toluene at 60 °C in the presence of amide compounds. The NMR analysis of DBI and N-ethylacetamide demonstrated both 1:1 complex and 1:2 complex were formed at 60 °C through a hydrogen-bonding interaction. The ESR analysis of radical polymerization of diisopropyl itaconate (DiPI) was conducted in addition to the NMR analysis of the obtained poly(DiPI). It was suggested that the suppression of the intramolecular chain-transfer reaction with the hydrogen-bonding interaction was achieved by controlling the conformation of the side chain at the penultimate monomeric unit of the propagating radical with an isotactic stereosequence. (Keyword) di-n-butyl itaconate / C-13-NMR / chain-transfer reaction / radical polymerization / hydrogen bond / tacticity / ELECTRON-SPIN-RESONANCE / DIISOPROPYL ITACONATE / RATE CONSTANTS / LEWIS-ACIDS (Tokushima University Institutional Repository) ● Metadata: 115969 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.20293 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.20293 (Tokushima University Institutional Repository: 115969, DOI: 10.1002/pola.20293)
77.	Tsuneyuki Sato, Takashi Miyagi, Tomohiro Hirano and Makiko Seno : Initiator-fragment incorporation radical polymerization of ethylene glycol dimethacrylate in the presence of 1,1-diphenylethylene: synthesis and characterization of soluble hyperbranched polymer nanoparticles, Polymer International, Vol.53, No.10, 1503-1511, 2004. (Summary) The polymerization of ethylene glycol dimethacrylate (EGDMA) as crosslinker was carried out at 70 and 80 °C in benzene using dimethyl 2,2 -azobisisobutyrate (MAIB) as initiator at concentrations as high as 0.50 0.70 mol l-1 in the presence of 1,1-diphenylethylene (DPE), where the concentrations of EGDMA and DPE were 0.50 0.70 and 0.25 0.50 mol l-1, respectively. The polymerization proceeded homogeneously, without gelation, to give soluble polymers. The yield and molecular weight of the resulting polymers increased with time. (Keyword) initiator-fragment incorporation radical polymerization / hyperbranched polymer / electron spin resonance / nanoparticle / divinyl monomer / crosslinker / CONDENSING VINYL COPOLYMERIZATION / GLYOXYLIC OXIME ETHER / PHOTOFUNCTIONAL INIMER / INIFERTER / STYRENE / ALPHA (Link to Publication Site) ● Publication site (DOI): 10.1002/pi.1575 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pi.1575 (DOI: 10.1002/pi.1575)
78.	Makiko Seno, Hisako Kishimoto, Satoshi Kinoshita, Toshiaki Higashiguchi, Tomohiro Hirano and Tsuneyuki Sato : Radical polymerization behavior of vinyl phenylsufonylacetate, European Polymer Journal, Vol.40, No.9, 2247-2250, 2004. (Summary) Vinyl phenylsulfonylacetate (VPSA) was prepared by the reaction of vinyl chloroacetate with sodium benzenesulfinate in acetone in the presence of a phase-transfer catalyst. VPSA showed a high radical homopolymerizability similar to vinyl acetate in spite of the fact that VPSA carries a phenyl group. The polymerization of VPSA with 2,2 -azobisisobutyrate (MAIB) was kinetically investigated in acetone. The overall activation energy of the polymerization was 27.6 kcal/mol. The polymerization rate (Rp) at 50 °C was expressed by Rp=k[MAIB]0.67[VPSA]1.1. Poly(VPSA) showed exothermic (27 °C) and endothermic (57 °C) peaks in its DCS curve, corresponding to crystallization and melting. The tacticity of poly(VPSA) was estimated to be rr=29, mr=49, and mm=22. (Keyword) radical polymerization / kinetic study / vinyl ester / tacticity / poly(vinyl alcohol) / SYNDIOTACTIC POLY(VINYL ALCOHOL) / ACETATE / SOLVENT / MECHANISM (Link to Publication Site) ● Publication site (DOI): 10.1016/j.eurpolymj.2004.05.025 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.eurpolymj.2004.05.025 (DOI: 10.1016/j.eurpolymj.2004.05.025)
79.	Tomohiro Hirano, Hitomi Miki, Makiko Seno and Tsuneyuki Sato : Significant effect of hydrogen-bonding interaction on syndiotactic-specificity in radical polymerization of N-isopropylacrylamide, Journal of Polymer Science Part A: Polymer Chemistry, Vol.42, No.17, 4404-4408, 2004. (Summary) Radical polymerization of N-isopropylacrylamide (NIPAAm) was investigated in toluene at 0 °C in the presence of Lewis base. It was found that O-coordinating Lewis base enhanced syndiotactic-specificity of NIPAAm polymerization and, in particular, the syndiotactic diad reached up to 63% in the presence of twofold amount of hexamethylphosphoramide (HMPA). This is the first example of a direct synthesis of a syndiotactic-rich poly(NIPAAm) by a radical polymerization. The NMR analysis revealed that the 1:1 complex formation of NIPAAm and HMPA through a hydrogen-bonding interaction is the key of the syndiotactic-specific radical polymerization. The mechanism for the present polymerization system was discussed. (Keyword) N-isopropylacrylamide / radical polymerization / hydrogen bond / syndiotactic / stereoregular polymer / NMR / FLUOROALCOHOLS (Tokushima University Institutional Repository) ● Metadata: 115968 (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.20315 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.20315 (Tokushima University Institutional Repository: 115968, DOI: 10.1002/pola.20315)
80.	Kohji Masaki, Shin-ichi Ohkawara, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : Kinetic study of the crosslinking reaction of 1,2-polybutadiene with dicumyl peroxide in the absence and presence of vinyl acetate, Journal of Polymer Science Part A: Polymer Chemistry, Vol.42, No.17, 4437-4447, 2004. (Summary) The crosslinking reaction of 1,2-polybutadiene (1,2-PB) with dicumyl peroxide (DCPO) in dioxane was kinetically studied by means of Fourier transform near-infrared spectroscopy (FTNIR). The crosslinking reaction was followed in situ by the monitoring of the disappearance of the pendant vinyl group of 1,2-PB with FTNIR. The initial disappearance rate (R0) of the vinyl group was expressed by R0 = k[DCPO]0.8[vinyl group]-0.2 (120 °C). The overall activation energy of the reaction was estimated to be 38.3 kcal/mol. The unusual rate equation was explained in terms of the polymerization of the pendant vinyl group as an allyl monomer involving degradative chain transfer to the monomer. (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.20250 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.20250 (DOI: 10.1002/pola.20250)
81.	Tsuneyuki Sato, Yukiko Arima, Makiko Seno and Tomohiro Hirano : Formation of a soluble hyperbranched polymer via initiator-fragment incorporation radical copolymerization of divinyl adipate and isobutyl vinyl ether, Polymer International, Vol.53, No.8, 1138-1144, 2004. (Summary) The copolymerization of divinyl adipate (DVA) with isobutyl vinyl ether (IBVE) was conducted at 70 and 80 °C in benzene using azobisisobutyronitrile (AIBN), at a concentration as high as 0.50 mol l-1 as the initiator, where the concentrations of DVA and IBVE were 0.40 and 0.60 mol l-1, respectively. The copolymerization proceeded homogeneously, without any gelation, to yield soluble copolymers in spite of the high molar ratio of DVA as an excellent cross-linker for IBVE. (Link to Publication Site) ● Publication site (DOI): 10.1002/pi.1515 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pi.1515 (DOI: 10.1002/pi.1515)
82.	Tsuneyuki Sato, Naoki Higashida, Tomohiro Hirano and Makiko Seno : Initiator-fragment incorporation radical copolymerization of divinylbenzene and N-isopropylacrylamide with dimethyl 2,2'-azobisisobutyrate: Formation of soluble hyperbranched polymer nanoparticle, Journal of Polymer Science Part A: Polymer Chemistry, Vol.42, No.7, 1609-1617, 2004. (Summary) The copolymerization of divinylbenzene (DVB) and N-isopropylacrylamide (NIPAm) with dimethyl 2,2 -azobisisobutyrate of a concentration as high as 0.50 mol/L proceeded homogeneously without any gelation at 80 °C in N,N-dimethylformamide, where the concentrations of DVB and NIPAm were 0.15 and 0.50 mol/L. The copolymer yield increased with time and leveled off over 50 min. Although DVB was consumed more rapidly than NIPAm, both comonomers were completely consumed in 50 min. (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.11065 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-1642376014 (DOI: 10.1002/pola.11065, Elsevier: Scopus)
83.	Kohji Masaki, Shin-ichi Ohkawara, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : Devulcanization of nitrile butadiene rubber in nitrobenzene, Journal of Applied Polymer Science, Vol.91, No.5, 3342-3353, 2004. (Summary) Sulfur-crosslinked nitrile butadiene rubber (s-NBR) was found to be devulcanized when it was heated with nitrobenzene at 200°C for 3 h. The tetrahydrofuran (THF)-soluble fraction from s-NBR heated with nitrobenzene was purified by reprecipitation with THF/n-hexane, chloroform/n-hexane, and THF/n-hexane systems and was then characterized by means of Fourier transform infrared (FTIR) spectroscopy, 1H-NMR, gel permeation chromatography, dynamic thermogravimetry/differential thermal analysis (DTA), and differential scanning calorimetry (DSC). (Keyword) polybutadiene / devulcanization / nitrobenzene / rubber / networks / RING-OPENING POLYMERIZATION / FREE-RADICAL INITIATOR / ULTRASONIC DEVULCANIZATION / OLIGOMERS / SIMULATION / BEHAVIOR (Link to Publication Site) ● Publication site (DOI): 10.1002/app.13546 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/app.13546 (DOI: 10.1002/app.13546)
84.	Tsuneyuki Sato, Masahiko Hashimoto, Makiko Seno and Tomohiro Hirano : Soluble hyperbranched polymer through initiator-fragment incorporation radical copolymerization of ethylene glycol dimethacrylate and α-ethyl β-N-(α'-methylbenzyl) itaconamate in benzene, European Polymer Journal, Vol.40, No.2, 273-282, 2004. (Summary) The copolymerizations of ethylene glycol dimethacrylate (EGDM) with α-ethyl β-N-(α -methylbenzyl) itaconamates (RS- and S-EMBIs) derived from (RS)- and (S)-α-methylbenzylamines were conducted at 70 and 80 °C in benzene using dimethyl 2,2 -azobisisobutyrate (MAIB) of high concentration as initiator. The copolymerization of EGBM (0.20 mol/l) and RS-EMBI (0.50 mol/l) with MAIB (0.50 mol/l) proceeded homogeneously without any gelation in benzene to give benzene-soluble copolymer in a yield of 55% based on the total weight of EGDM, RS-EMBI and MAIB. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.eurpolymj.2003.09.018 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.eurpolymj.2003.09.018 (DOI: 10.1016/j.eurpolymj.2003.09.018)
85.	Tomohiro Hirano, Kousuke Higashi, Makiko Seno and Tsuneyuki Sato : Effect of Hydrogen-Bonding Interaction on Radical Polymerization of Di-n-butyl Itaconate, Journal of Polymer Science Part A: Polymer Chemistry, Vol.41, No.21, 3463-3467, 2003. (Summary) Radical polymerizations of di-n-butyl itaconate (DBI) were carried out in toluene at 60 °C in the presence of amide compounds. The 13C-NMR spectra of the obtained poly(DBI)s indicated that the intramolecular chain-transfer reaction was suppressed as compared with in the absence of amide compounds. (Keyword) di-n-butyl itaconate / NMR / chain-transfer reaction / radical polymerization / hydrogen bond / syndiotactic (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.10957 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.10957 (DOI: 10.1002/pola.10957)
86.	Hongwei Wang, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : Radical Polymerization Behavior of 3-(N-2-Methacryloyloxyethyl-N,N-dimethyl)ammonatopropanesulfonate in Water, European Polymer Journal, Vol.39, No.11, 2107-2114, 2003. (Summary) Kinetic study for radical polymerization of betaine monomer, 3-(N-2-Methacryloyloxyethyl-N,N-dimethyl)ammonatopropanesulfonate, was carried out in water. The rate equation was determined. Furthermore, the polymerization was accelerated with addition of salts, such as CsCl and KCl. (Link to Publication Site) ● Publication site (DOI): 10.1016/S0014-3057(03)00156-3 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/S0014-3057(03)00156-3 (DOI: 10.1016/S0014-3057(03)00156-3)
87.	Tsuneyuki Sato, Nobuyuki Sato, Makiko Seno and Tomohiro Hirano : Initiator-Fragment Incorporation Radical Polymerization of Divinylbenzene in the Presence of Glyoxylic Oxime Ether: Formation of Soluble Hyperbranched Polymer, Journal of Polymer Science Part A: Polymer Chemistry, Vol.41, No.19, 3038-3047, 2003. (Summary) Soluble hyperbranched polymers were successfully prepared from radical polymerization of divinylbenzene in the presence of glyoxylic wxime ether, which is a retarder for styrene polymerization, with a large amount of radical initiators. (Keyword) radical polymerization / copolymer / initiator-fragment incorporation radical / polymerization / divinylbenzene / hyperbranched / viscosity / COPOLYMERIZATION / STYRENE (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.10824 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1570291226812428928 ● Search Scopus @ Elsevier (DOI): 10.1002/pola.10824 (DOI: 10.1002/pola.10824, CiNii: 1570291226812428928)
88.	Tomohiro Hirano, Kousuke Higashi, Makiko Seno and Tsuneyuki Sato : Radical Polymerization of Di-n-butyl Itaconate in the Presence of Lewis Acids, European Polymer Journal, Vol.39, No.9, 1801-1808, 2003. (Summary) Radical polymerization of di-n-butyl itaconate was investigated in the presence of Lewis acids such as Sc(OTf)3. Side reaction, intramolecular chain transfer reaction, was partially suppressed taking advantage of complex formation between the monomer and Lewis acids. (Keyword) radical polymerization / itaconate / chain-transfer reaction / tacticity / Lewis acid / ELECTRON-SPIN-RESONANCE / CHAIN-TRANSFER / EMULSION POLYMERIZATION / DIISOPROPYL ITACONATE / RATE CONSTANTS / C-13 NMR / ACRYLATE / SPECTROSCOPY / CATALYSTS / LACTONES (Link to Publication Site) ● Publication site (DOI): 10.1016/S0014-3057(03)00105-8 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/S0014-3057(03)00105-8 (DOI: 10.1016/S0014-3057(03)00105-8)
89.	Kohji Masaki, Shin-ichi Ohkawara, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : Fourier transform near-infrared and electron spin resonance studies on the crosslinking reaction of liquid carboxylated poly(acrylonitrile-co-butadiene) rubber with dicumyl peroxide in dioxane, Journal of Applied Polymer Science, Vol.89, No.8, 2095-2101, 2003. (Summary) Cross-linking reaction of acrylonitrile-butadiene copolymers was investigated with the aid of near infrared and ESR spectroscopies. Rate equation for the cross-linking reaction was determined. (Keyword) crosslinking / polybutadiene / kinetics (polym.) / infrared spectroscopy / ESR / EPR / POLYMERIZATION / METATHESIS / 1,4-POLYBUTADIENE / DEGRADATION / COPOLYMERS / STYRENE / BLOCK (Link to Publication Site) ● Publication site (DOI): 10.1002/app.12338 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1572543026626931456 ● Search Scopus @ Elsevier (DOI): 10.1002/app.12338 (DOI: 10.1002/app.12338, CiNii: 1572543026626931456)
90.	Tsuneyuki Sato, Masahiko Hashimoto, Makiko Seno and Tomohiro Hirano : Elementary Reaction Analysis of the Radical Polymerization of α-Ethyl β-N-(α'-Methylbenzyl)itaconamates Carrying (RS)- and (S)-α-Methylbenzylaminocarbonyl Groups, Journal of Polymer Science Part A: Polymer Chemistry, Vol.41, No.12, 1819-1830, 2003. (Summary) α-Ethyl β-N-(α'-Methylbenzyl)itaconamates carrying (RS)- and (S)-α-nethylbenzylaminocarbonyl groups were prepared from racemic and S-α-methylbenzylamines. Kinetic study of radical polymerization of the monomers revealed that polymerization proceeded rapidly in benzene compared with in methanol. Furthermore, the racemic monomer was consumed faster than optically active monomer. (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.10722 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.10722 (DOI: 10.1002/pola.10722)
91.	Tomohiro Hirano, Kazuhiro Furuya, Makiko Seno and Tsuneyuki Sato : ¹³C NMR and electron spin resonance analyses of the radical polymerization of diisopropyl itaconate, Journal of Polymer Science Part A: Polymer Chemistry, Vol.40, No.24, 4513-4522, 2002. (Summary) ESR analysis for radical polymerization of diisopropyl itaconate was performed. Two kinds of signals were observed. These signals were assigned to the propagating radicals with different conformations. 13C NMR analysis of the polymers obtained suggested the relationship between the conformation and stereochemistry near the propagating chain end. (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.10529 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.10529 (DOI: 10.1002/pola.10529)
92.	Tsuneyuki Sato, Nobuyuki Sato, Makiko Seno and Tomohiro Hirano : Effect of Glyoxylic Oxime Ether on Radical Polymerization of Styrene, Journal of Polymer Science Part A: Polymer Chemistry, Vol.40, No.16, 2772-2781, 2002. (Summary) Radical polymerization of styrene and vinyl acetate was investigated in the presence of glyoxylic oxime ether. It was found that glyoxylic oxime ether behaved as a retarder in the styrene polymerization and an inhibitor in the vinyl acetate polymerization. (Keyword) radical polymerization / C=N bond / styrene / retarder / glyoxylic oxime ether / ESR spectrum / additives / monomers / kinetics / addition polymerization / METHYL-METHACRYLATE / COPOLYMERIZATION / CYCLIZATION / TERMINATION / FULLERENE / ACIDS (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.10357 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0037103095 (DOI: 10.1002/pola.10357, Elsevier: Scopus)
93.	Tomohiro Hirano, Ryoko Takeyoshi, Makiko Seno and Tsuneyuki Sato : Chain-transfer reaction in the radical polymerization of di-n-butyl itaconate at high temperatures, Journal of Polymer Science Part A: Polymer Chemistry, Vol.40, No.14, 2415-2426, 2002. (Summary) 13C NMR analysis of radically prepared poly(di-n-butyl itaconate)s was carried out. It was found that intramolecular chain-transfer reaction occurred over 60°C. Furthermore, the racemo-ended radical favorably took place the intramolecular chain-transfer reaction more then the meso-ended radical. (Keyword) C-13 NMR / chain-transfer reaction / di-n-butyl itaconate / radical polymerization / tacticity / atom transfer radical polymerizaton (ATRP) / ELECTRON-SPIN-RESONANCE / METHYL-METHACRYLATE / RATE CONSTANTS / MONOMER / STEREOCONTROL / PROPAGATION / BENZENE / BULK (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.10316 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0037100236 (DOI: 10.1002/pola.10316, Elsevier: Scopus)
94.	Tsuneyuki Sato, Ryuji Maeda, Makiko Seno and Tomohiro Hirano : Radical and cationic polymerizations of 2-(N,N-dimethyldithiocarbamoyl)ethyl vinyl ether and use of the resulting polymers as photoinitiator, European Polymer Journal, Vol.38, No.7, 1491-1494, 2002. (Summary) 2-(N,N-Dimethyldithiocarbamoyl)ethyl vinyl ether was prepared and polymerization behavior of this monomer was investigated. Radical and cationic polymerization provided polymers with different polymer backbone. In addition, the polymers obtained were found to behave as photo-initiators. (Keyword) vinyl ether / radical polymerization / cationic polymerization / polymer photoinitiator / N,N-dimethyldithiocarbamoyl group / radical group transfer mechanism / ADDITION-ABSTRACTION MECHANISM (Link to Publication Site) ● Publication site (DOI): 10.1016/S0014-3057(02)00002-2 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0036643283 (DOI: 10.1016/S0014-3057(02)00002-2, Elsevier: Scopus)
95.	Tsuneyuki Sato, Hidekazu Mukuno, Hirotaka Ishida, Makiko Seno and Tomohiro Hirano : Radical polymerization of vinyl thiocyanatoacetate:Participation of group-transfer mechanism, Journal of Polymer Science Part A: Polymer Chemistry, Vol.40, No.4, 573-582, 2002. (Summary) Vinyl thiocyanatoacetate was prepared and polymerization behavior of this monomer was investigated. It was found that polymerization reaction proceeded not only via vinyl mechanism but also cyano-group transfer mechanism, resulting in polyester-polythioether backbone polymers. (Keyword) vinyl thiocyanatoacetate / vinyl acetate / radical polymerization / group-transfer radical polymerization / chain transfer to monomer / kinetics (polym.) / ADDITION-ABSTRACTION MECHANISM / ETHER (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.10137 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1002/pola.10137 (DOI: 10.1002/pola.10137)
96.	Tsuneyuki Sato, Toru Takahashi, Makiko Seno and Tomohiro Hirano : Vinyl Polymerization with a Binary System of p-Chlorobenzenediazonium Salt and Sodium Tetraphenylborate, Journal of Polymer Science Part A: Polymer Chemistry, Vol.39, No.24, 4206-4213, 2001. (Summary) Combination of sodium tetraphenylborate and p-chlorobenzendiazonium tetrafluoroborate was found to be low temperature radical initiator for acrylic monomers. (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.10071 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0035892646 (DOI: 10.1002/pola.10071, Elsevier: Scopus)
97.	Tsuneyuki Sato, Masanobu Sato, Makiko Seno and Tomohiro Hirano : Polymerization of vinyl acetate initiated with di-tert-butyl perfumarate, Macromolecular Chemistry and Physics, Vol.202, No.8, 1306-1312, 2001. (Summary) Radical copolymerization of vinyl acetate and di-tert-butyl perfumarate, which is bifunctional radical initiator, gave only polymers with low molecular weights. However, the polymers obtained behaved macroinitiator for radical polymerization of vinyl acetate, resulting in formation of high molecular weight polymers. (Link to Publication Site) ● Publication site (DOI): 10.1002/1521-3935(20010501)202:8<1306::AID-MACP1306>3.0.CO;2-5 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0035877958 (DOI: 10.1002/1521-3935(20010501)202:8<1306::AID-MACP1306>3.0.CO;2-5, Elsevier: Scopus)
98.	Tsuneyuki Sato, Yosinori Maeda, Makiko Seno and Tomohiro Hirano : Radical Heterogeneous Polymerization Behavior of N-Methyl-α-Fluoroacrylamide in Benzene, Journal of Polymer Science Part A: Polymer Chemistry, Vol.39, No.13, 2196-2205, 2001. (Summary) Kinetic study for radical polymerization of N-methyl-α-fluoroacrylamide was carried out. ESR analysis revealed that radical concentration increased with time, because long-lived radical formed because of heterogeneous situation. (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.1196 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0035399312 (DOI: 10.1002/pola.1196, Elsevier: Scopus)
99.	Tomohiro Hirano, Atsushi Tabuchi, Makiko Seno and Tsuneyuki Sato : Kinetic and ESR Studies of Ring-Opening Radical Polymerization of 1,1-Bis(ethoxycarbonyl)-2-vinylcyclopropane, Macromolecules, Vol.34, No.14, 4737-4741, 2001. (Summary) Kinetic study for ring-opening radical polymerization of 1,1-bis(ethoxycarbonyl)-2-vinylcyclopropane was performed. It was found that the polymerization obeys the rate equation proposed for conventional vinyl polymerization. (Link to Publication Site) ● Publication site (DOI): 10.1021/ma001962t (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0035800307 (DOI: 10.1021/ma001962t, Elsevier: Scopus)
100.	Tsuneyuki Sato, Takayuki Oki, Makiko Seno and Tomohiro Hirano : Radical and cationic polymerization of 3-ethyl-3-methacryloyloxymethyloxetane, Journal of Polymer Science Part A: Polymer Chemistry, Vol.39, No.9, 1269-1279, 2001. (Summary) Methacrylate monomer having cationically-polymerizable oxetane side group was prepared. Radical initiator gave vinyl polymers, whereas cationic initiator produced polyether. (Link to Publication Site) ● Publication site (DOI): 10.1002/pola.1104 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0035336550 (DOI: 10.1002/pola.1104, Elsevier: Scopus)
101.	Makiko Seno, Tomoya Fukui, Tomohiro Hirano and Tsuneyuki Sato : Kinetic and ESR Studies on Radical Polymerization Behavior of N-(2-Phenylethoxycarbonyl)methacrylamide, Journal of Polymer Science Part A: Polymer Chemistry, Vol.38, No.23, 4264-4271, 2000. (Summary) Over-all activation energy and rate equation for radical polymerization of N-(2-phenylethoxycarbonyl)methacrylamide were kinetically determined. Furthermore, annealing converted the corresponding polymers into poly(methacrylamide)s with removing styrene and CO2 molecules. (Link to Publication Site) ● Publication site (DOI): 10.1002/1099-0518(20001201)38:23<4264::AID-POLA120>3.0.CO;2-3 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0034546874 (DOI: 10.1002/1099-0518(20001201)38:23<4264::AID-POLA120>3.0.CO;2-3, Elsevier: Scopus)
102.	Tsuneyuki Sato, Shin-ichi Tada, Makiko Seno and Tomohiro Hirano : Kinetic and ESR studies on the radical polymerization of α-N-(α'-methylbenzyl) β-ethyl itaconamates derived from racemic and (S)-α-methylbenzylamines, Journal of Polymer Science Part A: Polymer Chemistry, Vol.38, No.22, 4137-4146, 2000. (Summary) Methacrylamide derivatives were prepared from racemic and S-α-methylbenzylamines. Kinetic study of radical polymerization of the monomers revealed that the racemic monomer was consumed faster than optically active monomer. (Link to Publication Site) ● Publication site (DOI): 10.1002/1099-0518(20001115)38:22<4137::AID-POLA140>3.0.CO;2-1 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0034322648 (DOI: 10.1002/1099-0518(20001115)38:22<4137::AID-POLA140>3.0.CO;2-1, Elsevier: Scopus)
103.	Tatsuki Kitayama, Hiroko Yamaguchi, Takeshi Kanzawa and Tomohiro Hirano : Living Ring-Opening Polymerization of ε-Caprolactone with Combinations of tert-Butyllithium and Bulky Aluminum Phenoxides, Polymer Bulletin, Vol.45, No.2, 97-104, 2000. (Summary) Anionic ring-opening polymerization of ε-caprolactone with t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminum was found to be high-speed living polymerization, in which the monomer was completely consumed within 1 min. (Link to Publication Site) ● Publication site (DOI): 10.1007/s002890170109 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0033675180 (DOI: 10.1007/s002890170109, Elsevier: Scopus)
104.	Tomohiro Hirano, Tatsuki Kitayama, Jingzhe Cao and Koichi Hatada : ¹³C NMR Analysis of Uniform Heterotactic Oligo(allyl methacrylate) Aiming at Understanding Even-Odd Alternation in Distribution of Degree of Polymerization, Polymer Journal, Vol.32, No.11, 961-969, 2000. (Summary) Anionic oligomerization of allyl methacrylate with t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminum was carried out to obtain heterotactic oligomer. Uniform oligomers were fractionated by supercritical fluid chromatography. 13C NMR revealed that the structure of the oligomers with odd number DPs were better defined than those with even number DPs. (Link to Publication Site) ● Publication site (DOI): 10.1295/polymj.32.961 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0034510931 (DOI: 10.1295/polymj.32.961, Elsevier: Scopus)
105.	Tomohiro Hirano, Sachiko Tateiwa, Makiko Seno and Tsuneyuki Sato : Temperature dependence of stereospecificity in the radical polymerization of di-n-butyl itaconate in bulk, Journal of Polymer Science Part A: Polymer Chemistry, Vol.38, No.13, 2487-2491, 2000. (Summary) Radical bulk polymerization of di-n-butyl itaconate was carried out at a wide range of temperatures from 78°C to 120°C. 13C NMR analysis revealed that syndiotacticity increased with decrease in the polymerization temperature. (Link to Publication Site) ● Publication site (DOI): 10.1002/1099-0518(20000701)38:13<2487::AID-POLA200>3.0.CO;2-L (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0033683370 (DOI: 10.1002/1099-0518(20000701)38:13<2487::AID-POLA200>3.0.CO;2-L, Elsevier: Scopus)
106.	Tomohiro Hirano, Tatsuki Kitayama, Jingzhe Cao and Koichi Hatada : Unusual Distribution of Degree of Polymerization Observed for Heterotactic Oligomer of Allyl Methacrylate, Macromolecules, Vol.33, No.6, 1926-1928, 2000. (Summary) Anionic oligomerization of allyl methacrylate with t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminum was carried out to obtain heterotactic oligomer. Supercritical fluid chromatography revealed that the oligomers with odd number degrees of polymerization (DP) were preferentially formed more than those with even number DPs. (Link to Publication Site) ● Publication site (DOI): 10.1021/ma991725u (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0033874913 (DOI: 10.1021/ma991725u, Elsevier: Scopus)
107.	Miroslav Janco, Tomohiro Hirano, Tatsuki Kitayama, Koichi Hatada and Dusan Berek : Discrimination of Poly(ethyl methacrylate)s According to Their Molar Mass and Tacticity by Coupling Size Exclusion Chromatography and Liquid Chromatography at Critical Adsorption Point, Macromolecules, Vol.33, No.5, 1710-1715, 2000. (Summary) Isotactic, syndiotactic and heterotactic poly(ethyl methacrylate)s with the same chemical structure from the initiating to terminating chain-ends were prepared by anionic polymerizations. It was found that HPLC under the critical adsorption point successfully separates the polymers by stereoregularities, instead of molecular weights. (Link to Publication Site) ● Publication site (DOI): 10.1021/ma990518r (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0033890920 (DOI: 10.1021/ma990518r, Elsevier: Scopus)
108.	Tomohiro Hirano, Hiroko Yamaguchi, Tatsuki Kitayama and Koichi Hatada : Heterotactic Polymerization of Methacrylates Having C-3 Ester Group, Polymer Journal, Vol.30, No.9, 767-769, 1998. (Summary) Anionic polymerization of allyl methacrylate with t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminum gave heterotactic polymer with mr triad of 96%. The 96% mr triad was the highest heterotacticity among the heterotactic polymers reported so far.
109.	Tomohiro Hirano, Tatsuki Kitayama and Koichi Hatada : Effect of Ester Compounds on Stereospecificity in Methacrylate Polymerization with t-BuLi/Bis(2,6-di-t-butylphenoxy)methylaluminum, Polymer Journal, Vol.30, No.9, 736-742, 1998. (Summary) 種々のエステル化合物存在下，t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminumを開始剤とするメタクリル酸エチルのヘテロタクチックアニオン重合を行い，エステルの添加によってラセモ末端アニオンのヘテロタクチック選択性が低下し，メゾ末端アニオンのヘテロタクチック選択性が向上することを見出した．
110.	Tatsuki Kitayama, Tomohiro Hirano and Koichi Hatada : Remarkable Effect of Structure of Bulky Aluminum Phenoxides on Stereospecificity of Methacrylate Polymerization, Tetrahedron, Vol.53, No.45, 15263-15279, 1997. (Summary) Anionic polymerization of ethyl methacrylate was carried out with t-BuLi / bis(2,6-di-t-butylphenoxy)alkylaluminum. It was found that the alkyl group bound to the aluminum center influenced the stereospecificity; methyl group induced heterotactic specificity and ethyl group induced syndiotactic specificity.
111.	Tatsuki Kitayama, Tomohiro Hirano and Koichi Hatada : Remarkable Change of Stereochemistry near the Terminating Chain-End of Heterotactic Poly(ethyl methacrylate) with Conversion. Importance in Mechanistic Study of Stereospecific Polymerization with the Aid of Chain-End Analysis, Polymer Journal, Vol.28, No.12, 1110-1111, 1996. (Summary) Anionic polymerization of ethyl methacrylate was carried out with t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminum to obtain heterotactic polymers. Tacticity distribution was found to vary with time even after the monomer was fully consumed. The structure of the propagating anions was discussed.
112.	Tatsuki Kitayama, Tomohiro Hirano, Zhang Yajun and Koichi Hatada : Highly Heterotactic Polymerization of Methacrylates - Higher Order Stereoregulation and Stereochemical Significance, Macromolecular Symposia, Vol.107, 297-306, 1996. (Summary) Anionic polymerization of ethyl methacrylate was carried out with t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminum to obtain heterotactic polymers. Mechanism of the heterotactic-specific polymerization was discussed based on tacticity distribution near the chain ends and in chain, which were characterized by 13C NMR.
113.	Tatsuki Kitayama, Tomohiro Hirano and Koichi Hatada : Chain-End Stereostructure of Heterotactic Poly(ethyl methacrylate) Prepared with t-Butyllithium/Bis(2,6-di-t-butylphenoxy)methylaluminum as Studies by ¹³C NMR Spectroscopy, Polymer Journal, Vol.28, No.1, 61-67, 1996. (Summary) Anionic polymerization of ethyl methacrylate was carried out with t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminum to obtain heterotactic polymers. 13C NMR analysis of tacticity distribution near the chain ends revealed stereoselectivity in the initiating reaction and effect of stereochemistry at the second diad from the chain end on stability of the propagating anion.

Academic Paper (Unrefereed Paper):

1.	Tomohiro Hirano, Shou Nasu, Ryota Kamiike and Koichi Ute : Development of stereospecific living radical polymerization with UV-LED irradiation, Bulletin of Institute of Technology and Science, The University of Tokushima, Vol.55, 44-50, 2010. (Summary) Effect of simple alkyl alcohol on radical polymerization of N-isopropylacrylamide (NIPAAm)in toluene at low temperatures was investigated. We succeeded in inducing syndiotactic-specificityand accelerating polymerization reaction at the same time by adding simple alkyl alcohols intoNIPAAm polymerization. Furthermore, effect of chain transfer agent on NIPAAm polymerization atlow temperatures was also examined. Living nature was observed with use of LED as UV lightsource even for the low-temperature radical polymerization. (Keyword) N-isopropylacrylamide / Radical Polymerization / Stereoregularity / Living Polymerization (Tokushima University Institutional Repository) ● Metadata: 71071 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1050865122808250624 (Tokushima University Institutional Repository: 71071, CiNii: 1050865122808250624)

Review, Commentary:

1.	Tomohiro Hirano : Statistical Treatment for Distributions of Stereosequence and Monomer Sequence in Vinyl (Co)polymers, Kobunshi, Vol.71, No.12, 611-613, Dec. 2022. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520294573748419712 (CiNii: 1520294573748419712)
2.	Tomohiro Hirano, 百瀬陽, 上池亮太 and Koichi Ute : Determination of Chemical Composition and Monomer Sequence Distributions of Methacrylate Copolymers by Multivariate Analysis of NMR Spectra, Bunseki Kagaku, Vol.71, No.9, 471-482, Sep. 2022. (Summary) Multivariate analysis was applied to nuclear magnetic resonance (NMR) spectra of methacrylate copolymers. Principal component analysis (PCA) of 13C NMR spectra of linear copolymers of methyl methacrylate (MMA) and tert-butyl methacrylate (TBMA) successfully extracted information on chemical compositions and monomer sequences. Quantitative analysis of the chemical composition and monomer sequence was achieved by partial least-squares (PLS) regression using NMR spectra of the corresponding homopolymers and their blends as a training dataset. PCA was also useful for the extraction of information on chemical composition in branched copolymers prepared by initiator-fragment incorporation radical copolymerization of TBMA and ethylene glycol dimethacrylate with dimethyl 2,2'-azobis(isobutyrate). The chemical compositions and degree of branching were predicted by PLS regression using NMR spectra of the corresponding homopolymers, their blends and branched copolymers as a training dataset. In addition, PCA was found to be a good measure to evaluate the monomer sequence distribution in linear copolymers of MMA and benzyl methacrylate (BnMA) prepared by various polymer reactions. Furthermore, PCA of 1H NMR spectra of linear copolymers of MMA and BnMA was applied to extract information on chemical compositions and monomer sequences. Monomer reactivity ratios were reasonably estimated from a single sample using the diad sequence distributions predicted by PLS regression. (Link to Publication Site) ● Publication site (DOI): 10.2116/bunsekikagaku.71.471 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.2116/bunsekikagaku.71.471 (DOI: 10.2116/bunsekikagaku.71.471)
3.	Koichi Ute and Tomohiro Hirano : Monomer sequence analysis of copolymers obtained by various polymer reactions, Kobunshi, Vol.65, No.9, 506-508, Sep. 2016. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572359191280512 ● Summary page in Scopus @ Elsevier: 2-s2.0-84995633310 (CiNii: 1520572359191280512, Elsevier: Scopus)
4.	Tomohiro Hirano : Hydrogen-bond-assisted stereospecific radical polymerizations of N-alkylacrylamides, Japanese Journal of Polymer Science and Technology, Vol.72, No.5, 218-231, May 2015. (Summary) Radical Polymerizations of N-alkylacrylamides were investigated to control stereospecificities by taking advantage of hydrogen bonding interaction. The stereospecificity was found to depend on the structures of hydrogen-bond-assisted complexes of the monomers. As a result, a wide range of stereoregular polymers, such as isotactic, syndiotactic and heterotactic polymers, were successfully obtained. Furthermore, effect of stereoregularity on phase transition behaviors of aqueous poly(N-alkylacrylamide) solutions was investigated. A combination of stereoregularity and N-substituent affected significantly the phase transition behavior. In particular, N-n-propylacrylamide units in syndiotactic and isotactic stereosequences induced large hysteresis between heating and cooling processes. In addition, multivariate analysis extracted successfully information on stereoregularities from NMR spectra of stereoregular poly(N-isopropylacrylamide)s. (Link to Publication Site) ● Publication site (DOI): 10.1295/koron.2014-0083 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84937908547 (DOI: 10.1295/koron.2014-0083, Elsevier: Scopus)
5.	Tomohiro Hirano : 合成高分子のNMRスペクトルの多変量解析-オフライン二次元NMR法-, ぶんせき, Vol.2013, No.10, 631-632, Oct. 2013.
6.	Momose Hikaru, Tomohiro Hirano and Koichi Ute : NMRスペクトルの多変量解析による合成高分子の一次構造解析, Bulletin of the Nuclear Magnetic Resonance Society of Japan, Vol.3, 27-37, Oct. 2012.
7.	Koichi Hatada, Tatsuki Kitayama and Tomohiro Hirano : Preparation of Heterotactic Polymers and Their Properties, Polymer News, Vol.30, No.9, 277-283, Sep. 2005. (Summary) ヘテロタクチックポリマーの合成例を紹介するとともに，メタクリル酸エステルのヘテロタクチック特異性重合の反応機構の解説を行なった．また物性についても簡単に説明した．

Proceeding of International Conference:

1.	Ken Yoshida, Ayato Doi, Haruka Yoshioka, Tomohiro Hirano and Masaru Nakahara : Hydrothermal Reactions of Alkylamines in Sub- and Supercritical Water Studied by NMR Spectroscopy, 8th International Solvothermal and Hydrothermal Association Conference, Valladolid, Spain, Sep. 2023.
2.	Miyuki Oshimura, Kai-Ming Huang, Yuya Masaki, Ryo Fujiwara, Tomohiro Hirano and Koichi Ute : Modification of amino and amide groups to poly(vinyl alcohol) side chains and evaluation of their thermal properties and solubility, The 13th SPSJ International Polymer Conference (IPC2023), Sapporo, Jul. 2023.
3.	Kazuma Abe, Kohdai Oda, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Polyester synthesis by dimerization of lignin derivatives and condensation with diols and evaluation of their degradability by photocleavage and hydrolysis, The 13th SPSJ International Polymer Conference (IPC2023), Sapporo, Jul. 2023.
4.	Masayoshi Watanabe, Tomohiro Hirano, Koichi Ute and Miyuki Oshimura : Anionic Polymerization of Methyl Methacrylate with A Bulky Zincate - Chain-end Analysis to Investigate The Polymerization Mechanism -, The 13th SPSJ International Polymer Conference (IPC2023), Sapporo, Jul. 2023.
5.	Koto Suganuma, H.N. Cheng, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute and Tetsuo Asakura : NMR analysis of poly(lactic acid) through the use of statistical models, ACS Fall 2020 Virtual Meeting & Expo, Online, Aug. 2020.
6.	Tomohiro Hirano : Stereochemistry of poly(N-tert-butyl-N-n-propylacrylamide) 13C NMR analysis of the polymers transformed by de-tert-butylation, ACS Fall 2020 Virtual Meeting & Expo, Online, Aug. 2020.
7.	Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : Stereospecific Radical Polymerization of N,N-Disubstituted Acrylamides and NMR Analysis of Stereoregularity of the Polymers Obtained, Federation of Asian Polymer Societies Polymer Congress 2019 (FAPS2019), Taipei, Oct. 2019.
8.	Miyuki Oshimura, Ryo Kagitani, Tomohiro Hirano and Koichi Ute : Amino Group Modification of Poly(Vinyl Alcohol) Side Chain by Chemoselective Transesterification Using Zinc Ate Complex, Federation of Asian Polymer Societies Polymer Congress 2019 (FAPS2019), Taipei, Oct. 2019.
9.	Menghao Li, Koki Maeda, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Unusual Hysteresis in Phase Transition Behavior of Aqueous Solution of Acrylamide Copolymers Containing N-Ethylacrylamide as a Component, Federation of Asian Polymer Societies Polymer Congress 2019 (FAPS2019), Taipei, Oct. 2019.
10.	Ayano Tanaka, Misaki Senoo, Yasunari Kusaka, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Monomer Sequence Analysis of the Poly(vinylalcohol-co-vinyl acetate)s Prepared by Transesterification Catalyzed by Zinc Ate Complex, Federation of Asian Polymer Societies Polymer Congress 2019 (FAPS2019), Taipei, Oct. 2019.
11.	Tomohiro Hirano : Stereospecific Radical Polymerization of N,N-Disubstituted Acrylamides, International Congress on Pure & Applied Chemistry Yangon 2019, Yangon, Aug. 2019.
12.	Tomohiro Hirano : NMR analysis of stereostructure in radically prepared poly(N,N-disubstituted acrylamide)s, ISPAC-2019 (32nd International Symposium on Polymer Analysis and Characterization), Zao, Jun. 2019.
13.	Miyuki Oshimura, Tomoki Hirata, Tomohiro Hirano and Koichi Ute : Synthesis of (meth)acrylate copolymers from poly[phenyl (meth)acrylate] by transesterification using zinc art complex, 257th ACS National Meeting & Exposition, Orlando, Apr. 2019.
14.	Yoshiro Ishikawa, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : Synthesis of hyperbranched polymers by light -irradiationinitiatorfragment incorporation radical copolymerization of acrylamides with N,N'-methylenebisacrylamide -, The 12th SPSJ International Polymer Conference (IPC2018), Hiroshima, Dec. 2018.
15.	Ryotaro Kizu, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : Thermally induced cationic polymerization of isobutyl vinyl ether and methoxystyrenes in the presence of solvate ionic liquid, The 12th SPSJ International Polymer Conference (IPC2018), Hiroshima, Dec. 2018.
16.	Minari Shiren, Momoko Tanaka, Yukihiro Arakawa, Yasushi Imada, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Monomer sequence distribution in the copolymers derived from isotactic poly(methacrylic acid) by stepwise esterification: Partial neutralization by guanidine, The 12th SPSJ International Polymer Conference (IPC2018), Hiroshima, Dec. 2018.
17.	Miyuki Oshimura, Tomoki Hirata, Tomohiro Hirano and Koichi Ute : Side chain modification of poly(phenyl methacrylate) by transesterification using zinc art complex, The 12th SPSJ International Polymer Conference (IPC2018), Hiroshima, Dec. 2018.
18.	Tomohiro Hirano : Synergy Effect of Stereoregularity and N-Substituent on the Phase Transition Behavior of Aqueous Poly(N-alkylacrylamide)s, International Congress on Pure & Applied Chemistry Langkawi 2018, Langkawi, Oct. 2018.
19.	Yasunari Kusaka, Misaki Senoo, Tomohiro Hirano and Koichi Ute : Structure analysis of blockiness controlled poly (vinyl alcohol-co-vinyl acetate) by NMR, 255th ACS National Meeting & Exposition, New Orleans, Mar. 2018.
20.	Koto Suganuma, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute, H. N. Cheng and Tetsuo Asakura : NMR analysis of the stereoregularity of poly(lactic acid) through the use of selective solvents, 255th ACS National Meeting & Exposition, New Orleans, Mar. 2018.
21.	Koichi Ute, Tomohiro Hirano, Miyuki Oshimura, Yudai Ishii and Ikuma Wakamatsu : Determination of Stereoregularity of Poly(lactic acid) by Multivariate Analysis of NMR Spectra, 29th International Symposium on Chirality (Chirality 2017), Tokyo, Jul. 2017.
22.	Nenji Munekane, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : Cationic polymerization of vinyl ethers in the presence of Li salts, The 11th SPSJ International Polymer Conference (IPC2016), Fukuoka, Dec. 2016.
23.	Yuta Ogasa, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : Chemoselective radical polymerization of N-allylmethacrylamide in the presence of Li salts, The 11th SPSJ International Polymer Conference (IPC2016), Fukuoka, Dec. 2016.
24.	Pohsun Yin, Junpei Hashimoto, Tadashi Segata, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : The effect of stereoregularity on phase-transition behaviors of aqueous polymethacrylamides, The 11th SPSJ International Polymer Conference (IPC2016), Fukuoka, Dec. 2016.
25.	Tomohiro Hirano : Stereoregular poly(N-alkylacrylamide)s - radical polymerization and aqueous phase transition behavior, 2016 International Symposium on Novel and Sustainable Technology, Tainan, Oct. 2016.
26.	Koto Suganuma, H. Cheng, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute and Tetsuo Asakura : Analysis of stereoregularity in poly(lactic acid) by solution NMR, Pacifichem2015 (The International Chemical Congress of Pacific Basin Societies), Waikiki, Dec. 2015.
27.	Yuka Nakanishi, Yuchin Hsu, Toshiki Okubo, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Monomer sequence in the poly(methyl methacrylate-co-benzyl methacrylate)s prepared by various polymer reactions of poly(benzyl methacrylate), Pacifichem2015 (The International Chemical Congress of Pacific Basin Societies), Waikiki, Dec. 2015.
28.	Daichi Yokota, Yuka Nakanishi, Mitsuhiro Nagahama, Tomohiro Hirano and Koichi Ute : Monomer sequence in the poly(methyl methacrylate-co-benzyl methacrylate)s prepared by stepwise esterification of isotactic poly(methacrylic acid), Pacifichem2015 (The International Chemical Congress of Pacific Basin Societies), Waikiki, Dec. 2015.
29.	Fumiya Semba, Hideyuki Uozumi, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Modification of methacrylate copolymers having various monomer sequence and stereoregularity with D-glucosamine, 14th Pacific Polymer Conference, Kauai, Dec. 2015.
30.	Yuta Ogasa, Tadashi Segata, Tomohiro Hirano and Koichi Ute : Chemoselective radical polymerization of N-allylmethacrylamide in the presence of Li salts, 14th Pacific Polymer Conference, Kauai, Dec. 2015.
31.	Nenji Munekane, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Radical copolymerization of methyl methacrylate and N-methylmethacrylamide in the presence of Li salt, 14th Pacific Polymer Conference, Kauai, Dec. 2015.
32.	Junpei Hashimoto, Miyuki Oshimura, Tomohiro Hirano, Yoshihiro Uto and Koichi Ute : Stereospecific radical polymerization of methacrylamide derivatives in the presence of lithium salts, 14th Pacific Polymer Conference, Kauai, Dec. 2015.
33.	Miyuki Oshimura, Takahiro Hiura, Hikaru Momose, Yohei Miwa, Tomohiro Hirano and Koichi Ute : Preparation and Stereocomplexation of Poly(mandelic acid)s Obtained by Direct Polycondensation, 14th Pacific Polymer Conference, Kauai, Dec. 2015.
34.	Tomohiro Hirano, Takuya Teramori, Miyuki Oshimura and Koichi Ute : Study on initiation reaction of polymerization of N-isopropylacrylamide with a bulky zincate complex, IUPAC International Symposium on Ionic Polymerization 2015 (IP15), Bordeaux, Jul. 2015.
35.	Yuchin Hsu, Mingyeh Chuang, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Analysis of Monomer Sequence of Copolymers Prepared by Various Polymer Reactions of Poly(Benzyl Methacrylate), 28th International Symposium for Polymer Analysis and Characterization (ISPAC-2015), Houston, Jun. 2015.
36.	Miyuki Oshimura, Keigo Motoyama, Hiroyuki Kitayama, Yoshihiko Ikeda, Tomohiro Hirano and Koichi Ute : Structural Determination of Novel Polyamine by Correlation Analysis of 1H NMR and Mass Spectra, 28th International Symposium for Polymer Analysis and Characterization (ISPAC-2015), Houston, Jun. 2015.
37.	Takahiro Hiura, Miyuki Oshimura, Akinori Saito, Makoto Fukuoka, Yusuke Hemmi, Hikaru Momose, Tomohiro Hirano and Koichi Ute : Synthesis of optically-activite poly(mandelic acid)s obtained by direct polycondensation using onium salt catalysts, The 10th International Polymer Conference (IPC2014), Tsukuba, Dec. 2014.
38.	Yuki Oda, Ryo Okazaki, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Functionalization of polyesters by transesterification in the presence of dilithium tetra-tert-butylzincate, The 10th International Polymer Conference (IPC2014), Tsukuba, Dec. 2014.
39.	Junpei Hashimoto, Tadashi Segata, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Stereospecific radical polymerization of methacrylamide derivatives, The 10th International Polymer Conference (IPC2014), Tsukuba, Dec. 2014.
40.	Chihlung Chiu, Manato Harada, Tomohiro Hirano and Koichi Ute : Analysis of monomer sequence of copolymers obtained by partial hydrolysis of poly(benzyl methacrylate), The 10th International Polymer Conference (IPC2014), Tsukuba, Dec. 2014.
41.	Tomohiro Hirano, Yuya Miyamoto, Shinya Amano, Kazuya Tatsumi, Miyuki Oshimura and Koichi Ute : Isotactic-specific radical polymerization of N-vinyl-2-pyrrolidone, The 10th International Polymer Conference (IPC2014), Tsukuba, Dec. 2014.
42.	Mingyeh Chuang, Yuchin Hsu, Chihlung Chiu, Kouji Funaoka, Tomohiro Hirano and Koichi Ute : Analysis of monomer sequence of copolymers obtained by polymer reactions of isotactic and syndiotactic poly(benzyl methacrylate)s, The 10th International Polymer Conference (IPC2014), Tsukuba, Dec. 2014.
43.	Yoshitaka Kurano, Yohei Miwa, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Study of radical polymerization mechanism of acrylamide derivatives in the presence of Li salts, The 10th International Polymer Conference (IPC2014), Tsukuba, Dec. 2014.
44.	Yoshitaka Kurano, Tatsuya Saito, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Effect of Alkali Metal Salts on Radical Polymerization of Acrylic Monomers, The 13th Pacific Polymer Conference (PPC 13), Kaohsiung, Nov. 2013.
45.	Ryo Okazaki, Yuki Oda, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Ring-Opening Polymerization of Cyclic Esters with Lithium t-Butylzincate in the Presence of Methacrylates, The 13th Pacific Polymer Conference (PPC 13), Kaohsiung, Nov. 2013.
46.	Yuki Konishi, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Sugar Modification of Polyhydroxyurethanes Synthesized by Polyaddition of Five-Membered Cyclic Dicarbonates and Diamines, The 13th Pacific Polymer Conference (PPC 13), Kaohsiung, Nov. 2013.
47.	Tomohiro Hirano, Risa Yahata, Koto Suganuma, Tetsuo Asakura, Miyuki Oshimura and Koichi Ute : Multivariate Analysis of NMR Spectra of Poly(Lactic Acid), The 13th Pacific Polymer Conference (PPC 13), Kaohsiung, Nov. 2013.
48.	Miyuki Oshimura, Takahiro Hiura, Akinori Saito, Makoto Fukuoka, Yusuke Hemmi, Hikaru Momose, Tomohiro Hirano and Koichi Ute : Direct Polycondensation of Mandelic Acid Using Onium Salt Catalysts, The 13th Pacific Polymer Conference (PPC 13), Kaohsiung, Nov. 2013.
49.	Tadashi Segata, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Stereospecific Radical Polymerizations of N-Alkylmethacrylamides in the Presence of Alkali Metal Salts and Phase Transition Behaviors of Aqueous Solutions of the Polymers Obtained, The 13th Pacific Polymer Conference (PPC 13), Kaohsiung, Nov. 2013.
50.	Miyuki Oshimura, Ryo Okazaki, Yuji Tanaka, Tomohiro Hirano and Koichi Ute : Ring-Opening Polymerization of Cyclic Esters with Lithium tert-Butylzincate under Mild Conditions, IUPAC International Symposium on Ionic Polymerization 2013 (IP2013), Awaji, Sep. 2013.
51.	Yu-Chin Hsu, Koji Funaoka, Manato Harada, Tomohiro Hirano and Koichi Ute : Multivariate analysis of C-13 NMR spectra of methacrylate copolymers prepared by copolymerization or polymer reactions, IUPAC International Symposium on Ionic Polymerization 2013 (IP2013), Awaji, Sep. 2013.
52.	Tomohiro Hirano, Tadashi Segata, Miyuki Oshimura and Koichi Ute : Radical polymerization of N-alkylmethacrylamides in the presence of alkali metal salts: acceleration and stereocontrol, IUPAC International Symposium on Ionic Polymerization 2013 (IP2013), Awaji, Sep. 2013.
53.	Risa Yahata, Koto Suganuma, Tetsuo Asakura, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Tacticity analysis of poly(lactic acid) by multivariate analysis of NMR spectra, IUPAC International Symposium on Ionic Polymerization 2013 (IP2013), Awaji, Sep. 2013.
54.	Shinji Nishimae, Yoshihumi Isobe, Tomoki Yabutani, Toshio Takayanagi, Tomohiro Hirano and Koichi Ute : Poyion Complxes Formed between Hyper-branched Polyelectrolytes Synthesized by Ininiator-Fragment Incorporation Radical Polymerization Method, ASIANALYSIS XII The Twelfth Asian Conference on Analytical Sciences, Fukuoka, Aug. 2013.
55.	Takanori Tada, Yukiteru Katsumoto, Tomohiro Hirano, Koichi Ute, Karel Gossens, Hiroshi Uji-i, Johan Hofkens, Tatsuya Shoji, Noboru Kitamura and Yasuyuki Tsuboi : Tacticity dependence of phase separation dynamics of aqueous poly(N-isopropylacrylamide) solutions, The 9th International Polymer Conference (IPC 2012), Kobe, Dec. 2012.
56.	Risa Yahata, Tomohiro Hirano, Miyuki Oshimura, Koichi Ute, Koto Suganuma and Tetsuo Asakura : Tacticity analysis of poly(lactic acid) by multivariate analysis of NMR spectra, The 9th International Polymer Conference (IPC 2012), Kobe, Dec. 2012.
57.	Yuki Konishi, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Water Solubilization and Modification of Polyhydroxyurethanes Synthesized by Polyaddition of Five-membered Cyclic Dicarbonates and Diamines, The 9th International Polymer Conference (IPC 2012), Kobe, Dec. 2012.
58.	Hideki Miyamoto, Kenta Misumi, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Polymerization of Acrylic Monomers Having Acidic Proton with Lithium tert-Butylzincate, The 9th International Polymer Conference (IPC 2012), Kobe, Dec. 2012.
59.	Tatsuya Saito, Yoshitaka Kurano, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Effect of lithium salts on radical polymerizations of vinyl monomers, The 9th International Polymer Conference (IPC 2012), Kobe, Dec. 2012.
60.	Tadashi Segata, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Effect of lithium salts on the polymerization behaviors of N-n-propylmethacrylamide, The 9th International Polymer Conference (IPC 2012), Kobe, Dec. 2012.
61.	Akiko Ono, Hiroaki Yamamoto, Takeshi Mori, Yasushi Maeda, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Effect of stereoregularity and chemical composition on phase transition of aqueous solutions of poly(N-ethylacrylamide-co-N-n-propylacrylamide)s, The 9th International Polymer Conference (IPC 2012), Kobe, Dec. 2012.
62.	Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Polymerization of Cyclic Esters and Methacrylates with Lithium tert-Butylzincate: Structures of the Polymers and Polymerization Mechanism, The 9th International Polymer Conference (IPC 2012), Kobe, Dec. 2012.
63.	Takuya Anmoto, Nao Umezawa, Tomohiro Hirano, Hikaru Momose, Yukiteru Katsumoto, Miyuki Oshimura and Koichi Ute : NMR Assignment of poly(1-vinylpyrrolidone) by statistical 2D NMR, 12th Pacific Polymer Conference (PPC12), Cheju, Nov. 2011.
64.	Ryuichi Sakao, Tatsuya Naono, Seiko Asakawa, Hikaru Momose, Tomohiro Hirano and Koichi Ute : Analysis of Stereoregularity of Methacrylate Copolymers by Multivariate Analysis of 13C NMR Spectra, 12th Pacific Polymer Conference (PPC12), Cheju, Nov. 2011.
65.	Takahiro Furutani, Eiichi Kaji, Toshiyuki Kaneko, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Anionic Polymerization of N-Isopropylacrylamide with t-Bu4ZnLi2 in the Presence of Alcohols, 12th Pacific Polymer Conference (PPC12), Cheju, Nov. 2011.
66.	Miyuki Oshimura, Tomoko Asano, Megumi Abe, Toshiyuki Kaneko, Eiichi Kaji, Hikaru Momose, Tomohiro Hirano and Koichi Ute : Polymerization of Methacrylates with Lithium t-Butylzincate - Living Nature and Stereospecificity, 12th Pacific Polymer Conference (PPC12), Cheju, Nov. 2011.
67.	Akiko Ono, Hiroaki Yamamoto, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Synthesis and phase transition behavior of stereoregular copolymers containing N-ethylacrylamide, 12th Pacific Polymer Conference (PPC12), Cheju, Nov. 2011.
68.	Keiji Minagawa, Masaki Nishiuchi and Tomohiro Hirano : Presentation Class Synchronized with the Experiment of Organic and Polymer Chemistry, Proceedings of Asian Conference on Engineering Education 2011 (ACEE2011), Tokushima, Oct. 2011.
69.	Pei Cheng Chua, Malcolm A. Kelland, Tomohiro Hirano and Masami kamigaito : Kinetic Hydrate Inhibition of Poly(N-alkyl(meth)acrylamide)s with Different Tacticities, 7th International Conference on Gas Hydrates, Edinburgh, Jul. 2011.
70.	Tatsuya Naono, Hikaru Momose, Tomohiro Hirano and Koichi Ute : Determination of Comonomer Sequence Distributions in Methacrylate Terpolymers by Multivariate Analysis of 13C NMR Spectra, 24th International Symposium for Polymer Analysis and Characterization (ISPAC-2011), Turin, Jun. 2011.
71.	Hikaru Momose, Ryuichi Sakao, Tatsuya Naono, Seiko Asakawa, Tomohiro Hirano and Koichi Ute : Configurational Analysis of Poly(methyl methacrylate-co-tert-butyl methacrylate)s by Multivariate Analysis of 13C NMR Spectra, 24th International Symposium for Polymer Analysis and Characterization (ISPAC-2011), Turin, Jun. 2011.
72.	Tomohiro Hirano, Hikaru Momose, Tomoya Maeda, Tatsuya Naono, Seiko Asakawa, Yukiteru Katsumoto and Koichi Ute : Statistical two-dimensional NMR: Assignment of complicated resonances due to the carbonyl carbons of methacrylate copolymers, 24th International Symposium for Polymer Analysis and Characterization (ISPAC-2011), Turin, Jun. 2011.
73.	Tomohiro Hirano : Synthesis of stereoregular poly(N-isopropylacrylamide)s via low temperature radical polymerization and phase transition of aqueous solution thereof, The 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, Dec. 2010.
74.	Miki Shinomiya, Akihiro Morikami, Tomohiro Hirano and Koichi Ute : Asymmetric radical cyclopolymerization of N-allyl-N-tert-butylacrylamide in the presence of tartrates, The 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, Dec. 2010.
75.	Tomoya Maeda, Tatsuya Naono, Hikaru Momose, Tomohiro Hirano and Koichi Ute : Characterization of methacrylate copolymers and terpolymers by diffusion-ordered NMR spectroscopy (DOSY) and multivariate analysis of NMR spectra, The 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, Dec. 2010.
76.	Ryota Kamiike, Hikaru Momose, Tomohiro Hirano and Koichi Ute : Characterization of hyperbranched copolymer by means of multivariate analysis of 13C NMR spectra, The 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, Dec. 2010.
77.	Seiko Asakawa, Norihito Koga, Hikaru Momose, Tomohiro Hirano and Koichi Ute : Effects of polar compounds on the monomer reactivity ratio and stereoregularity in radical copolymerization of (meth)acrylates, The 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, Dec. 2010.
78.	Akihiro Morikami, Tomohiro Hirano and Koichi Ute : Stereocontrol of radical polymerization of N-methyl-N-(2-pyridyl)acrylamide utilizing conformational switching, The 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, Dec. 2010.
79.	Takahiro Furutani, Hiroaki Yamamoto, Tomohiro Hirano and Koichi Ute : Low temperature radical polymerization of N-alkyl-α-fluoroacrylamides, The 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, Dec. 2010.
80.	Hiroaki Yamamoto, Tomohiro Hirano and Koichi Ute : Effect of composition on phase transition of aqueous solution of syndiotactic N-alkylacrylamide copolymer, The 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, Dec. 2010.
81.	Yusuke Hemmi, Akinori Saito, Hikaru Momose, Tomohiro Hirano and Koichi Ute : Synthesis of uniform oligomers of D- and L-mandelic acids and copolymers of mandelic acid and lactic acid, The 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, Dec. 2010.
82.	Takeshi Mori, Yasushi Maeda, Tomohiro Hirano, Keiji Minagawa, Masami Tanaka, Takuro Niidome and Yoshiki Katayama : Mimicking the phase transition of proteins with synthetic polymers, The 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, Dec. 2010.
83.	Tomoya Maeda, Kosuke Hattori, Tatsuya Naono, Hikaru Momose, Tomohiro Hirano and Koichi Ute : Characterization of (Meth)acrylate Copolymers by DOSY -an Investigation on the Maximum Entropy Processing and Accuracy of the Determination-, International Conference on Polymer Analysis and Characterization & 15th Symposium on Polymer Analysis in Japan, Nagoya, Dec. 2010.
84.	Tatsuya Naono, Hikaru Momose, Tomoya Maeda, Tomohiro Hirano and Koichi Ute : Characterization of Terpolymers of Methacrylates by Multivariate Analysis of 13C NMR Spectra, International Conference on Polymer Analysis and Characterization & 15th Symposium on Polymer Analysis in Japan, Nagoya, Dec. 2010.
85.	Takuya Anmoto, Hikaru Momose, Tomohiro Hirano, Yukiteru Katsumoto and Koichi Ute : NMR Assignment of Poly(1-vinylpyrrolidone) by Statistical 2D NMR, International Conference on Polymer Analysis and Characterization & 15th Symposium on Polymer Analysis in Japan, Nagoya, Dec. 2010.
86.	Hikaru Momose, Tomoya Maeda, Tatsuya Naono, Seiko Asakara, Tomohiro Hirano and Koichi Ute : Analysis of Monomer Sequence Distribution and Stereoregularity of Poly(MMA-co-TBMA)s by Multivariate Analysis of 13C NMR Spectra, International Conference on Polymer Analysis and Characterization & 15th Symposium on Polymer Analysis in Japan, Nagoya, Dec. 2010.
87.	Tomohiro Hirano, Takuya Anmoto, Hikaru Momose and Koichi Ute : Assignment of NMR Spectra pf Poly(1-vinylpyrrolidone) by Multivatiate Analysis, 23rd International Symposium for Polymer Analysis and Characterization (ISPAC-2010), Pohang, May 2010.
88.	Tatsuya Naono, Hikaru Momose, Tomohiro Hirano and Koichi Ute : Characterization of Methacrylate Terpolymers by Multivariate Analysis of 13C NMR Spectra, 23rd International Symposium for Polymer Analysis and Characterization (ISPAC-2010), Pohang, May 2010.
89.	Hikaru Momose, Tomoya Maeda, Tomohiro Hirano and Koichi Ute : Determination of Comonomer Sequence Distributions of MMA-TBMA Copolymers by means of Multivariate Analysis of 13C NMR Spectra, 23rd International Symposium for Polymer Analysis and Characterization (ISPAC-2010), Pohang, May 2010.
90.	Tomohiro Hirano, Akihiro Morikami, Shou Nasu and Koichi Ute : The effect of the N-substituent s-trans to the C=O group of acrylamide derivatives on the stereospecificity of radical polyerizations, 11th Pacific Polymer Conference (PPC11), Cairns, Dec. 2009.
91.	Hiroaki Yamamoto, Yoichi Bando, Tomohiro Hirano and Koichi Ute : Synthesis of syndiotactic N-alkylacrylamide copolymers - the effect of chemical composition and stereoregularity on the phase transition behavior, 11th Pacific Polymer Conference (PPC11), Cairns, Dec. 2009.
92.	Hikaru Momose, Tomoya Maeda, Tatsuya Naono, Kosuke Hattori, Tomohiro Hirano and Koichi Ute : Characterization of methacrylate copolymers by means of multivariate analysis of 13C NMR spectra, 11th Pacific Polymer Conference (PPC11), Cairns, Dec. 2009.
93.	Koichi Ute, Hikaru Momose, Tomohiro Hirano, Kosuke Hattori and Tomoya Maeda : Maltivariate analysis of 13C NMR spectra of methacrylate copolymers and homopolymer blends, 22nd International Symposium for Polymer Analysis and Characterization (ISPAC-2009), Zlin, Czech Republic, Jun. 2009.
94.	Koichi Ute, Kosuke Hattori, Takeo Ikemiya, Aiko Kubokawa and Tomohiro Hirano : Multivariate Analysis of 13C NMR Spectra of MMA-HEMA Copolymers, 21st International Symposium for Polymer Analysis and Characterization (ISPAC-2008), Newark, DE, USA, Jun. 2008.
95.	Tsuneyuki Sato, Kazuki Nomura, Tomohiro Hirano and Makiko Seno : Soluble Hyperbranched Polymer Synthesis via Initiator-Fragment Incorporation Radical Polymerization Using Allyl Monomers, Asia Polymer Symposium 2006, Seoul, Jun. 2006. (Summary) 多量の開始剤を用いてアリル基を有するモノマーの開始剤組込みラジカル重合を行うと，溶媒に可溶な高分岐ポリマーが得られることを見出した．
96.	Tomohiro Hirano, Satoshi Ishii, Hiroko Kitajima, Hitomi Miki, Yuya Okumura, Hideaki Ishizu and Tsuneyuki Sato : Hydrogen-Bond-Assisted Stereocontrol in Radical Polymerization of N-Isopropylacrylamide, The 2005 International Chemical Congress of Pacific Basin Societies, Honolulu, Dec. 2005.
97.	Hiroko Kitajima, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : Stereocontrol in the radical polymerization of N-isopropylacrylamide utilizing chelate-complex formation, 8th SPSJ International Polymer Conference, Fukuoka, Jul. 2005. (Summary) N-イソプロピルアクリルアミドのラジカル重合系に二座配位性ルイス塩基としてジホスホン酸エステルを加えると，単座配位錯体を形成したときにはシンジオタクチックポリマーを，キレート錯体を形成したときにはイソタクチックポリマーを与えることを見出した．
98.	Tomohiro Hirano, Hitomi Miki, Satoshi Ishii, Hiroko Kitajima, Makiko Seno and Tsuneyuki Sato : Hydrogen-bond-assisted stereocontrol in the radical polymerization of N-isopropylacrylamide with phosphoric acid derivatives, 8th SPSJ International Polymer Conference, Fukuoka, Jul. 2005. (Summary) N-イソプロピルアクリルアミドのラジカル重合系にルイス塩基としてリン酸誘導体を加えるとイソタクチックからシンジオタクチックまでの立体構造を有するポリマーが得られることを見出した．
99.	Tomohiro Hirano, Satoshi Ishii, Hiroko Kitajima, Makiko Seno and Tsuneyuki Sato : Stereocontrol in Radical Polymerization of N-Isopropylacrylamide with Bulky Phosphates, The 4rd International Conference on Advanced Materials Development and Performance, Auckland, Jul. 2005. (Summary) かさ高いリン酸エステル存在下，N-イソプロピルアクリルアミドのラジカル重合を行ったところ，リン酸エステルがかさ高くなるほど，重合の立体特異性に及ぼす影響が小さくなることを見出した．
100.	Tsuneyuki Sato, Naoki Higashida, Tomohiro Hirano and Makiko Seno : Initiator-Fragment Incorporation Radical Copolymerization of Divinylbenzene and N-Isopropylacrylamide: Formation of Soluble Hyperbranched Polymer Nanoparticles, Asia Polymer Symposium 2004, Hangzhou, Oct. 2004. (Summary) 多量の開始剤を用いてジビニルベンゼンとN-イソプロピルアクリルアミドとのラジカル共重合を行なうと，可溶性の高分岐ポリマーナノ粒子が得られることを見出した．
101.	Tomohiro Hirano, Kazuhiro Furuya, Makiko Seno and Tsuneyuki Sato : Radical Polymerization of Diisopropyl Itaconate as Studied by 13C NMR and ESR Spectroscopies, IUPAC Polymer Conference on the Mission and Challenges of Polymer Science and Technology, Kyoto, Dec. 2002. (Summary) イタコン酸ジイソプロピルのラジカル重合のESR測定と得られたポリマーの13C NMR測定を行い，ESRスペクトル中で観測された2種類のコンホメーションの異なるラジカルと末端近傍の立体規則性との関係を明らかにした．
102.	Tomohiro Hirano, Kazuhiro Furuya, Makiko Seno and Tsuneyuki Sato : Effect of Ester Group on Intramolecular Chain Transfer Reaction in Radical Polymerization of Itaconate, The 3rd International Conference on Advanced Materials Development and Performance, Daegu, Oct. 2002. (Summary) 種々のイタコン酸エステルのラジカル重合で得られたポリマーを13C NMRを用いて解析し，エステル基がかさ高くなるほど副反応として起こる分子内連鎖移動反応が起きやすくなることを見出した．
103.	Tsuneyuki Sato, Yoshinori Maeda, Makiko Seno and Tomohiro Hirano : Polymerization of N-Methyl-α-fluoroacrylamide with Highly Efficient Formation of Long-Lived Propagating Polymer Radicals, Asia Polymer Symposium 2001, Toyohashi, Jul. 2001. (Summary) N-メチル-α-フルオロアクリルアミドのラジカル重合を速度論的に解析し，系が不均一化するとともに，取り残されて長寿命化されたラジカル濃度が増加することをESRを用いて確認した．
104.	Tomohiro Hirano, Ryoko Takeyoshi, Makiko Seno and Tsuneyuki Sato : Chain Transfer Reaction in The Polymerization of Itaconates at High Temperature, Asia Polymer Symposium 2001, Toyohashi, Jul. 2001. (Summary) ラジカル重合で得られたポリ(イタコン酸ジ-n-ブチル)を13C NMRを用いて解析し，高温では分子内連鎖移動反応が起こること，またリビングラジカル重合系開始剤を用いれば，分子内連鎖移動反応をほぼ抑制できることを見出した．
105.	Tomohiro Hirano, Jingzhe Cao, Tatsuki Kitayama and Koichi Hatada : Heterotactic Living Polymerization of Allyl Methacrylate, 7th SPSJ International Polymer Conference, Yokohama, Oct. 1999. (Summary) t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminumを開始剤として，メタクリル酸アリルのアニオン重合を行うと，ヘテロタクチック3連子含量が96%のこれまでで最も規則性の高いヘテロタクチックポリマーが得られることを見出した．
106.	Tomohiro Hirano, Jingzhe Cao, Tatsuki Kitayama and Koichi Hatada : Heterotactic Poly(allyl methacrylate) Even-Odd Alternation in Distribution of Degree of Polymerization, IUPAC International Symposium on Ionic Polymerization, Kyoto (Japan), Jul. 1999. (Summary) t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminumを開始剤とするメタクリル酸アリルのヘテロタクチックオリゴマー化反応で得られたオリゴマーの重合度分布を超臨界流体クロマトグラフィーを用いて解析し，奇数重合度オリゴマーの方が優先的に生成していることを見出した．
107.	Tatsuki Kitayama, Tomohiro Hirano, Jingzhe Cao and Koichi Hatada : C-13 NMR Analysis of Uniform Heterotactic Oligo(allyl methacrylate) Aiming at Understanding of Polymerization Mechanism, 13th C. S. Marvel Symposium, Tucson ( U.S.A.), Mar. 1999. (Summary) t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminumを開始剤としてメタクリル酸アリルのオリゴマー化反応を行い，得られたヘテロタクチックオリゴマーの末端近傍の立体構造を解析して，重合の立体制御機構について考察を行なった．
108.	Miroslav Janco, Tomohiro Hirano, Tatsuki Kitayama, Koichi Hatada and Dusan Berek : Coupling of Size Exclusion Chromatography and Liquid Chromatography at Critical Adsorption Point for Discrimination of Polymethacrylates According to Their Molar Mass and Tacticity, 37th International Symposium on Macromolecules, Gold Coast (Australia), Jul. 1998. (Summary) 開始末端から停止末端まで同じ化学構造を有する3種類(イソタクチック，シンジオタクチックおよびヘテロタクチック)のポリ(メタクリル酸エチル)のHPLC測定において，吸着機構とサイズ排除機構がつり合う溶離液を用いると，分子量ではなく立体規則性で分離できることを見出した．
109.	Tatsuki Kitayama, Tomohiro Hirano, Hiroko Yamaguchi and Koichi Hatada : Highly Heterotactic-Specific Living Polymerization of Allyl Methacrylate, 37th International Symposium on Macromolecules, Gold Coast (Australia), Jul. 1998. (Summary) t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminumを開始剤として，メタクリル酸アリルのアニオン重合を-95℃で行うと，ヘテロタクチック3連子含量が96%のこれまでで最も規則性の高いヘテロタクチックポリマーが得られることを見出した
110.	Tatsuki Kitayama, Takatsune Yanagida, Tomohiro Hirano, Koichi Ute and Koichi Hatada : 750 MHz NMR Spectroscopy of Polymethacrylate, 5th Pacific Polymer Conference, Kyongju (Korea), Oct. 1997. (Summary) ラジカル重合およびアニオン重合で得られたポリ(メタクリル酸メチル)またはポリ(メタクリル酸エチル)の末端構造および立体規則性を750MHz 1H NMRを用いて解析し，反応機構に関する知見を得た．
111.	Tatsuki Kitayama, Tomohiro Hirano, Hiroko Yamaguchi and Koichi Hatada : Anionic Polymerization of Methacrylate with Metal Phenoxide Group, 5th Pacific Polymer Conference, Kyongju (Korea), Oct. 1997. (Summary) フェノール基を有するメタクリル酸エステルとトリメチルアルミニウムとを反応させると1:1錯体が生成し，t-BuLiのみでは重合しないもののt-BuMgBrやt-BuLiとかさ高いアルミニウムフェノキシドとの組み合わせからなる開始剤を用いれば，アニオン重合することを見出した．
112.	Tatsuki Kitayama, Tomohiro Hirano, Hiroko Yamaguchi and Koichi Hatada : Anionic Polymerization of a Methacrylate Having Unprotected Phenolic Hydrogen, 6th International Polymer Conference, Kusatsu (Japan), Oct. 1997. (Summary) t-BuLi とalkylaluminum bis(2,6-di-t-butylphenoxide)の組み合わせからなる開始剤を用いると，アニオン重合の禁止剤となるフェノール水酸基を保護することなしに，メタクリル酸エステルのアニオン重合でポリマーが得られることを見出した．
113.	Tatsuki Kitayama, Tomohiro Hirano and Koichi Hatada : Heterotactic Living Polymerization of Methacrylate: Insight into Mechanism from Chain-end Stereostructure, 213th American Chemical Society National Meeting, San Francisco (USA), Apr. 1997. (Summary) t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminumを開始剤とするヘテロタクチックリビングアニオン重合で合成したポリメタクリル酸エステルの末端近傍および主鎖の立体規則性分布を13C NMRを用いて解析し，重合反応機構について考察を行った．
114.	Tatsuki Kitayama, Tomohiro Hirano, Shougang He, Sebastien Urbanek, Takashi Yabuta and Koichi Hatada : Stereospecific Living Polymerization of Functional Methacrylates with t-BuLi/Bulky Aluminum Phenoxide, 213th American Chemical Society National Meeting, San Francisco (USA), Apr. 1997. (Summary) t-BuLi / bis(2,6-di-t-butylphenoxy)methylaluminumを開始剤とし，ジメチルアミノ基やフェノール基を有するメタクリル酸エステルのアニオン重合を行い，立体規則性および分子量，分子量分布を同時に制御できることを見出した．

Proceeding of Domestic Conference:

1.	三好亮太朗, Ryo Kawatani, Kohei Torii, Ken Yoshida, Hitoshi Mizuguchi and Tomohiro Hirano : 1H NMRスペクトルの多変量解析によるビニルアルコール/酢酸ビニル共重合体の連鎖解析, 2024年日本化学会中国四国支部大会岡山大会, Nov. 2024.
2.	TOKIOKA Ryuya, Ryo Kawatani and Tomohiro Hirano : Ethyl 3-methyl-5-methylene-2,6-dioxo-4-phenylpiperidine-3-carboxylateのラジカル重合検討, 日本化学会中国四国支部大会 PA-22, Nov. 2024.
3.	TAKAHASHI Teppei, Ryo Kawatani and Tomohiro Hirano : アリル位にフェニル基と2-メチルアセト酢酸エステル基を有する環状アクリル無水物のラジカル(共)重合, 日本化学会中国四国支部大会 PA-15, Nov. 2024.
4.	岡崎拓也, Tomohiro Hirano and Koichi Ute : アクリル酸ナトリウムをベースとする高吸水性ポリマーの化学修飾, 2024年日本化学会中国四国支部大会岡山大会, Nov. 2024.
5.	玉越麗奈, 西村仁志, 竹田大登, Ryo Kawatani, Kohei Torii, Ken Yoshida, Hitoshi Mizuguchi and Tomohiro Hirano : ジアクリレートとスチレンとのラジカル共重合で合成したゲルのエステル交換反応を利用した構造解析, 第29回高分子分析討論会, Nov. 2024.
6.	日下康成, 妹尾美咲, Tomohiro Hirano and Koichi Ute : 連鎖分布の異なる共重合体の合成と2D-COS 法を用いた固体-溶液 2 次元 NMR 解析, 第73回高分子討論会, Sep. 2024.
7.	Miyuki Oshimura, WATANABE Ken, Tomohiro Hirano and Koichi Ute : 第四級アンモニウムカルボン酸塩を用いた β-ラクトンの開環重合とその反応機構の解析, 第73回高分子討論会, Sep. 2024.
8.	Tomohiro Hirano, 上池亮太 and Koichi Ute : NMRスペクトルの多変量解析 –アクリロニトリル，スチレン，α-メチルスチレンを成分とする共重合体の3元ブレンドのブレンドパラメータ解析–, 第73回高分子討論会, Sep. 2024.
9.	玉越麗奈, 西村仁志, 竹田大登, Ryo Kawatani, Kohei Torii, Ken Yoshida, Hitoshi Mizuguchi and Tomohiro Hirano : ジアクリレートとスチレンとのラジカル共重合で合成したゲルの構造解析, 第73回高分子討論会, Sep. 2024.
10.	西村仁志, Ryo Kawatani, Kohei Torii, Ken Yoshida, Hitoshi Mizuguchi and Tomohiro Hirano : 1H NMRスペクトルの多変量解析によるアクリル酸メチル/スチレン共重合体の統計的連鎖解析, 第73回高分子討論会, Sep. 2024.
11.	TAKAHASHI Teppei, Ryo Kawatani and Tomohiro Hirano : アリル位にフェニル基と脱離基を有する環状アクリル無水物のラジカル(共)重合, 第73回高分子討論会 1Pe001, Sep. 2024.
12.	原匠, ⻩凱銘, Miyuki Oshimura, Ryo Kawatani, Tomohiro Hirano and Koichi Ute : ポリビニルアルコール側鎖へのアミノ基修飾と pH 応答性評価∼第⼀級及び第⼆級アミノ酸エステルの違いが及ぼす影響, 第70回高分子研究発表会(神戸)・70周年記念講演会, Jul. 2024.
13.	堀田悠介, 孫瑞延, 三好亮太朗, Ryo Kawatani and Tomohiro Hirano : ポリ(N-アクリロイルグリシンメチルエステル)の水中での特異な相転移挙動, 第70回高分子研究発表会(神戸)・70周年記念講演会, Jul. 2024.
14.	西村仁志, Ryo Kawatani, Kohei Torii, Ken Yoshida, Hitoshi Mizuguchi and Tomohiro Hirano : 1H NMRスペクトルの多変量解析によるアクリル酸メチル/スチレン共重合体の連鎖解析, 第70回高分子研究発表会(神戸)・70周年記念講演会, Jul. 2024.
15.	Miyuki Oshimura, 阿部一磨, Ryo Kawatani, Tomohiro Hirano and Koichi Ute : ポリビニルアルコール側鎖への一リグニン誘導体の二量化およびジオールとの縮合によるポリエステル合成とその熱特性および分解性評価アミド基修飾と熱特性および溶解性評価, 第73回高分子学会年次大会, Jun. 2024.
16.	日下康成, 妹尾美咲, Tomohiro Hirano and Koichi Ute : 連鎖分布の異なる共重合体の合成と 2D-COS 法を用いた固体-溶液 2 次元 NMR 解析, 第1回高分子学会NMRシンポジウム, Dec. 2023.
17.	徳田規紘, 日下康成, 梶弘典, 長谷川健, Tomohiro Hirano and Koichi Ute : 800 MHz 1H DOSY による EPDM のキャラクタリーゼーション, 第1回高分子学会NMRシンポジウム, Dec. 2023.
18.	上池亮太, Tomohiro Hirano and Koichi Ute : NMR スペクトルの多変量解析によるターポリマーを含む三元コポリマーブレンドのブレンドパラメータ解析, 第1回高分子学会NMRシンポジウム, Dec. 2023.
19.	渡邉雅吉, Tomohiro Hirano, Koichi Ute and Miyuki Oshimura : かさ高い亜鉛酸アート錯体を開始剤とするメタクリル酸メチルのアニオン重合∼末端近傍の構造解析∼, 第1回高分子学会NMRシンポジウム, Dec. 2023.
20.	AYATO Doi, Ken Yoshida, Haruka Yoshioka, Tomohiro Hirano and 中原勝 : アルキルアミンの水熱反応:皮膜形成アミン適用のための生成物と経路のNMR解析, 水・蒸気性質シンポジウム2023, Nov. 2023.
21.	向遼河, 榎翔大, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 金属トリフラートの添加によるケイ皮酸ビニルのラジカル重合への影響, 2023年日本化学会中国四国支部大会山口大会, Nov. 2023.
22.	小林千洋, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Li+との錯形成によるN,N-ジメチルフマルアミド酸メチルの位置選択的ラジカル重合の試み, 2023年日本化学会中国四国支部大会山口大会, Nov. 2023.
23.	平井健斗, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Li+との錯形成によるN-メチルフマルアミド酸メチルの位置選択的ラジカル重合の試み, 2023年日本化学会中国四国支部大会山口大会, Nov. 2023.
24.	徳田規紘, 日下康成, 梶弘典, 長谷川健, Tomohiro Hirano and Koichi Ute : DOSY-最大エントロピー法による EPDM のキャラクタリゼーション― 高感度測定とノイズリダクションの併用, 第28回高分子分析討論会, Nov. 2023.
25.	徳田規紘, 日下康成, 梶弘典, 長谷川健, Tomohiro Hirano and Koichi Ute : DOSY-最大エントロピー法を用いた EPDM のキャラクタリーゼーション, 第62回NMR討論会, Nov. 2023.
26.	AYATO Doi, Ken Yoshida, Haruka Yoshioka, Tomohiro Hirano and 中原勝 : NMR analysis of reactions of ethylamine and octylamine in sub- and supercritical water, 第45回溶液化学シンポジウム, Oct. 2023.
27.	阿部一磨, 小田航大, 榧谷香花, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : リグニン誘導体の二量化および各種ジオールとの縮合によるポリエステル合成と分解性評価, 第72回高分子討論会, Sep. 2023.
28.	原匠, 黄凱銘, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : ポリビニルアルコール側鎖へのアミノ基修飾と溶解性評価 ∼アミノ酸エステルの違いが及ぼす影響∼, 第72回高分子討論会, Sep. 2023.
29.	藤原諒, 黄凱銘, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : ポリビニルアルコール側鎖へのアミノ基修飾とpH/温度変化による溶解挙動評価, 第72回高分子討論会, Sep. 2023.
30.	小林悠月, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : かさ高い亜鉛アート錯体を開始剤とするアニオン重合で合成したイソタクチックポリ(アクリル酸エチル)のエステル交換反応, 第72回高分子討論会, Sep. 2023.
31.	渡部健, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 第四級アンモニウムカルボン酸塩を開始剤に用いた環状エステルとNCAの開環(共)重合とその反応機構解析, 第72回高分子討論会, Sep. 2023.
32.	渡邉雅吉, Tomohiro Hirano, Koichi Ute and Miyuki Oshimura : テトラ-tert-ブチル亜鉛酸ジリチウムを用いたメタクリル酸メチルのアニオン重合と選択的エステル交換反応を利用した生成ポリマーの鎖末端修飾, 第72回高分子討論会, Sep. 2023.
33.	上池亮太, Tomohiro Hirano and Koichi Ute : 1H NMRスペクトルの多変量解析によるコポリマーの三元ブレンドのブレンドパラメータ解析, 第72回高分子討論会, Sep. 2023.
34.	高橋優斗, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : カルボン酸存在下でのN-イソプロピルアクリルアミドの立体特異性ラジカル重合, 第72回高分子討論会, Sep. 2023.
35.	Koichi Ute, Tomohiro Hirano, 徳田規紘, 渡邊颯 and 坂口悠人 : DOSY による合成高分子のキャラクタリゼーション - 現状と展望, 第72回高分子討論会, Sep. 2023.
36.	Miyuki Oshimura, Yuya Masaki, Tomohiro Hirano and Koichi Ute : ポリビニルアルコール側鎖へのアミド基修飾と熱特性および溶解性評価, 第72回高分子学会年次大会, May 2023.
37.	Miyuki Oshimura, HUANG KAI-MING, Ryo Fujiwara, Tomohiro Hirano and Koichi Ute : 化学選択的エステル交換反応によるポリビニルアルコール側鎖へのアミノ基修飾と溶解性評価, 第72回高分子学会年次大会, May 2023.
38.	Yuzuki Kobayashi, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : かさ高い亜鉛アート錯体を用いたアクリル酸エステルのアニオン重合と生成ポリマーのエステル交換反応, 第72回高分子学会年次大会, May 2023.
39.	黃凱銘, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : エステル交換反応を利用したポリビニルアルコール側鎖へのアミノ基修飾∼アミノ酸エステルの違いが修飾率および溶解性に及ぼす影響∼, 2022年日本化学会中国四国支部大会広島大会, Nov. 2022.
40.	薮内裕輝, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : ポリアクリル酸ブチルの溶液中におけるエステル交換反応に伴う分子量低下, 2022年日本化学会中国四国支部大会広島大会, Nov. 2022.
41.	正木佑弥, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : ポリビニルアルコール側鎖へのアミド基修飾および特性評価∼平均組成の違いが熱特性および溶解挙動に及ぼす影響∼, 2022年日本化学会中国四国支部大会広島大会, Nov. 2022.
42.	垣内広輝, 槌谷和磨, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 新規亜鉛アート錯体の合成とポリ酢酸ビニルのエステル交換への応用, 2022年日本化学会中国四国支部大会広島大会, Nov. 2022.
43.	徳田規紘, Tomohiro Hirano and Koichi Ute : EPDMのDOSYスペクトルの多変量解析によるノイズ除去とその効果, 第27回高分子分析討論会, Oct. 2022.
44.	上池亮太, Tomohiro Hirano and Koichi Ute : アクリロニトリル，スチレン，α-メチルスチレンを成分とするコポリマーブレンドの1H NMR スペクトルの多変量解析, 第27回高分子分析討論会, Oct. 2022.
45.	渡部健, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : テトラアルキルアンモニウムカルボン酸塩を開始剤に用いたα-アミノ酸カルボキシ無水物および L-ラクチドの開環(共)重合, 第71回高分子討論会, Sep. 2022.
46.	渡邉雅吉, Tomohiro Hirano, Koichi Ute and Miyuki Oshimura : テトラ-tert-ブチル亜鉛酸ジリチウムを開始剤に用いたメタクリル酸メチルのアニオン重合∼末端近傍の構造解析∼, 第71回高分子討論会, Sep. 2022.
47.	Miyuki Oshimura, 鍵谷遼, 田邊直人, 藤原諒, 黄凱銘, Tomohiro Hirano and Koichi Ute : 化学選択的エステル交換反応によるポリビニルアルコール側鎖へのアミノ基修飾と各種特性評価, 第71回高分子討論会, Sep. 2022.
48.	阿部一磨, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : リグニン誘導体の二量化反応およびPEGとの縮合反応を利用したポリエステル合成, 第71回高分子討論会, Sep. 2022.
49.	上池亮太, Tomohiro Hirano and Koichi Ute : アクリロニトリル，スチレン，α-メチルスチレンからなるコポリマーブレンドの1H NMRスペクトルの多変量解析による構造解析, 第71回高分子討論会, Sep. 2022.
50.	小林遥, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : テトラ-tert-ブチル亜鉛酸ジリチウムを開始剤に用いたN,N-2置換アクリルアミドの重合, 第68回高分子研究発表会(神戸), Jul. 2022.
51.	渡邉雅吉, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : テトラ-tert-ブチル亜鉛酸ジリチウムを開始剤に用いたメタクリル酸メチルの重合 ∼重合機構の考察∼, 第68回高分子研究発表会(神戸), Jul. 2022.
52.	森賀祐也, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : 溶媒和イオン液体存在下におけるイソブチルビニルエーテルのカチオン重合 ∼連鎖移動剤を用いた分子量制御の試み∼, 第68回高分子研究発表会(神戸), Jul. 2022.
53.	藤原諒, 鍵谷遼, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : ポリビニルアルコール側鎖へのアミノ基修飾と pH および温度応答性評価, 第71回高分子学会年次大会, May 2022.
54.	Miyuki Oshimura, 榎翔大, Tomohiro Hirano and Koichi Ute : 分子内環化率の制御を指向したケイ皮酸ビニルのラジカル重合, 第71回高分子学会年次大会, May 2022.
55.	高松京祐, 松下宏幸, Tomohiro Hirano and Koichi Ute : インバース型 diffusion プローブを用いた標準ポリスチレン混合サンプルの DOSY 測定, 第26回高分子分析討論会, Oct. 2021.
56.	Koichi Ute, 秋元隆史, 石田明子, Akinobu Imoto, 漆原紅, 大磯佑介, Tomohiko Kuwabara, 古賀慎一朗, 芝谷治美, 原優月, Tomohiro Hirano, 高松京祐, 牧野麗子, 松川隆幸, 松下宏幸 and Ken Yoshida : 標準ポリマー混合サンプルの DOSY 共通測定, 第26回高分子分析討論会, Oct. 2021.
57.	松下宏幸, 徳田規紘, Tomohiro Hirano and Koichi Ute : インバース型 diffusion プローブを用いたエチレンプロピレンジエンゴムの DOSY 測定, 第26回高分子分析討論会, Oct. 2021.
58.	Tomohiro Hirano, 藤田洋介, 四宮未来, Yukihiro Arakawa, Fumitoshi Yagishita, Akira Emoto, Miyuki Oshimura and Koichi Ute : 光学活性な酒石酸エステル存在下でのN-アリル-N-tert-ブチルアクリルアミドの不斉誘導ラジカル環化重合, 第70回高分子討論会, Sep. 2021.
59.	結城拓弥, 木津遼太郎, 上池亮太, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : 溶媒和イオン液体による活性種の安定化を利用したtrans-アネトールのカチオン単独重合, 第70回高分子討論会, Sep. 2021.
60.	Miyuki Oshimura, 鍵谷遼, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体およびアミノ酸エステルを用いた化学選択的エステル交換反応によるポリビニルアルコールの側鎖変換, 第70回高分子学会年次大会, May 2021.
61.	田邊直人, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : ポリビニルアルコール側鎖への第三級アミノ基修飾と続く双性イオン基への変換と特性評価, 第70回高分子学会年次大会, May 2021.
62.	Tomohiro Hirano, 李梦豪, Miyuki Oshimura and Koichi Ute : イソタクチックな立体構造を有するN-エチルアクリルアミド/N-イソプロピルアクリルアミド共重合体の水溶液が示す相転移挙動における大きなヒステリシス, 第69回高分子討論会, Sep. 2020.
63.	Miyuki Oshimura, 渋谷諒太, 戸田航平, Tomohiro Hirano and Koichi Ute : 立体規制を指向したチオウレアおよび第四級アンモニウム塩触媒によるrac-ラクチドの開環重合, 第69回高分子討論会, Sep. 2020.
64.	結城拓弥, 木津遼太郎, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : 溶媒和イオン液体存在下でのイソブチルビニルエーテルのカチオン重合∼系中にある水の影響∼, 第69回高分子学会年次大会, May 2020.
65.	植村友皓, 李梦豪, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : N-エチルアクリルアミドとN-イソプロピルアクリルアミドからなるイソタクチック共重合体をセグメントとするハイドロゲルの体積相転移挙動, 第69回高分子学会年次大会, May 2020.
66.	榎翔大, 笠井史也, 平田智輝, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体を用いた不可逆的エステル交換反応によるポリメタクリレート側鎖の官能基化, 第69回高分子学会年次大会, May 2020.
67.	田邊直人, 杉迫大輔, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体を用いたエステル交換反応によるポリビニルアルコール側鎖への3級アミノ基およびアミド基修飾, 第69回高分子学会年次大会, May 2020.
68.	金川拓海, 若松生馬, 八幡莉紗, 菅沼こと, 朝倉哲郎, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 1Hおよび13CのNMRスペクトルを用いた多変量解析によるポリ乳酸の4連子タクチシチー解析, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
69.	池北尚人, Tomohiro Hirano, Koichi Ute and Miyuki Oshimura : FIDデータの多変量解析によるNMRスペクトルのノイズ除去, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
70.	坂東宏樹, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体を用いた不可逆的重縮合による側鎖にアミノ基を有するポリエステルの合成, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
71.	渋谷諒太, 戸田航平, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 立体規制を指向したチオウレア触媒によるrac-ラクチドの開環重合, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
72.	笠井史也, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体を用いた分子量・立体規則性の異なるポリビニルメタクリレートの側鎖変換, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
73.	平尾有紀, 石井雄大, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : トリフルオロ酢酸ビニルとビニルエーテルのラジカル共重合と生成ポリマーの高分子反応, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
74.	孫瑞廷, 長谷川惟, 藤田洋介, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : 高分子反応を利用したポリアクリルアミド誘導体の合成および1H NMRによる3連子立体規則性解析の試み, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
75.	鍵谷遼, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体およびアミノ酸エステルを用いたポリビニルアルコール側鎖のアミノ基修飾, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
76.	李梦豪, 前田紘希, Tomohiro Hirano, Koichi Ute and Miyuki Oshimura : 立体規則性N-アルキル置換アクリルアミド共重合体水溶液のLCST型相転移における特異な温度履歴, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
77.	藤田洋介, Tomohiro Hirano, Koichi Ute and Miyuki Oshimura : 不斉ラジカル環化重合で合成したポリ(N-アリル-N-tert-ブチルアクリルアミド)の脱tert-Bu化反応, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
78.	長谷川惟, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : アミド交換反応を高分子反応として用いたアクリルアミド共重合体の合成, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
79.	平井美南子, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : ポリ(N-イソプロピルアクリルアミド) ゲルの体積相転移挙動に及ぼす立体規則性の影響, 2019年日本化学会中国四国支部大会徳島大会, Nov. 2019.
80.	日下康成, 妹尾美咲, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 連鎖分布の異なるビニルアルコール/酢酸ビニル共重合体の合成およびNMRによる特性解析, 第68回高分子討論会, Sep. 2019.
81.	Tomohiro Hirano, 杉浦美里, Miyuki Oshimura and Koichi Ute : N,N-2置換アクリルアミドのラジカル重合 – NMRによる立体規則性解析 –, 第68回高分子討論会, Sep. 2019.
82.	仲野晋司, 木津遼太郎, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : 溶媒和イオン液体存在下でのビニルエーテル類のカチオン重合, 第68回高分子討論会, Sep. 2019.
83.	平尾有紀, 石井雄大, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : トリフルオロ酢酸ビニルとビニルエーテルのラジカル共重合と生成ポリマーの高分子反応, 第65回高分子研究発表会(神戸), Jul. 2019.
84.	藤田洋介, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : 酒石酸エステル存在下での不斉ラジカル環化重合で得られたポリ(N-アリル-N-tert-ブチルアクリルアミド)の脱tert-Bu化反応, 第65回高分子研究発表会(神戸), Jul. 2019.
85.	李梦豪, 前田紘希, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : N-エチルアクリルアミドを1成分とするアクリルアミド共重合体水溶液の相転移における特異な温度履歴, 第65回高分子研究発表会(神戸), Jul. 2019.
86.	鍵谷遼, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体を用いた化学選択的エステル交換反応によるポリビニルアルコール側鎖のアミノ基修飾, 第68回高分子学会年次大会, May 2019.
87.	笠井史也, 平田智輝, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体を用いた不可逆的エステル交換反応によるポリメタクリレートの側鎖変換, 第68回高分子学会年次大会, May 2019.
88.	仲野晋司, 木津遼太郎, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : Li 塩とルイス塩基からなる溶媒和イオン液体中でのビニルエーテル類のカチオン重合∼カウンターアニオンや溶媒，モノマー構造が重合挙動に及ぼす影響∼, 第68回高分子学会年次大会, May 2019.
89.	Miyuki Oshimura, 戸田航平, Tomohiro Hirano and Koichi Ute : チオウレアおよびグアニジン触媒によるrac-ラクチドのエピ化を利用した立体特異性開環重合, 第68回高分子学会年次大会, May 2019.
90.	木津遼太郎, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : 溶媒和イオン液体による成長末端の特異的な安定化を利用したカチオン重合, 第67回高分子討論会, Sep. 2018.
91.	戸田航平, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : チオウレアまたはグアニジン触媒を用いたrac-LAの立体特異性開環重合, 第67回高分子討論会, Sep. 2018.
92.	長谷川惟, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : ポリ(N-アルキルアクリルアミド)のアミド交換反応による共重合体の合成, 第67回高分子討論会, Sep. 2018.
93.	平田智輝, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体を用いたエステル交換反応によるポリフェニルメタクリレートの側鎖変換, 第67回高分子討論会, Sep. 2018.
94.	菅沼こと, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute, H.N. Cheng and 朝倉哲郎 : 溶媒効果を利用した溶液NMRによるポリ乳酸の立体規則性解析, 第67回高分子討論会, Sep. 2018.
95.	日下康成, 妹尾美咲, 浜前奈未, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Pure Shift NMRを用いたポリ(N-ビニルピロリドン)の構造解析連鎖分布の異なるビニルアルコール/酢酸ビニル共重合体の合成およびNMRによる特性解析, 第67回高分子討論会, Sep. 2018.
96.	Miyuki Oshimura, 鍵谷遼, Tomohiro Hirano and Koichi Ute : 有機触媒を用いたアミド基を有するヒドロキシ酸およびヒドロキシエステルの重縮合, 第67回高分子討論会, Sep. 2018.
97.	池北尚人, Ken Yoshida, Tomohiro Hirano and Koichi Ute : Pure Shift NMRを用いたポリ(N-ビニルピロリドン)の構造解析, 第67回高分子討論会, Sep. 2018.
98.	Ayano Tanaka, Misaki Senoo, Asuka Okubo, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : イソタクチックな酢酸ビニル―ビニルアルコール共重合体の分子内エステル交換反応と連鎖解析, 第64回高分子研究発表会(神戸), Jul. 2018.
99.	Minako Hirai, Ryotaro Kizu, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : Znを担持したN-ビニルイミダゾールとN-α-メチルベンジルメタクリルアミドの共重合体によるエステル交換反応, 第64回高分子研究発表会(神戸), Jul. 2018.
100.	Yui Hasegawa, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : アミド交換反応を用いたアクリルアミド系共重合体の合成, 第64回高分子研究発表会(神戸), Jul. 2018.
101.	Shoya Onishi, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体を用いたエステル交換反応によるヒドロキシプロリンエステルの重合, 第64回高分子研究発表会(神戸), Jul. 2018.
102.	Ryotaro Kizu, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : 溶媒和イオン液体存在下でのtrans-アネトールのカチオン重合, 第64回高分子研究発表会(神戸), Jul. 2018.
103.	Misato Sugiura, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : tert-ブチル基を有する二置換アクリルアミドの重合と脱tert-ブチル化反応, 日本化学会第98春季年会, Mar. 2018.
104.	Kosuke Seki, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : tert-ブチル亜鉛酸リチウムを用いたエステル交換反応の高分子への応用, 2017年日本化学会中国四国支部大会, Nov. 2017.
105.	Hiroki Yamamoto, Misaki Senoo, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 酢酸ビニル - ビニルアルコール共重合体のDiffusion Ordered 2D NMR Spectroscopy (DOSY), 第22回高分子分析討論会, Oct. 2017.
106.	Shuhei Ogawa, Misaki Senoo, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 酢酸ビニル-ビニルアルコール共重合体の温度応答性解析および HPLC による分離, 第22回高分子分析討論会, Oct. 2017.
107.	前田紘希, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : N-イソプロピルアクリルアミド/N-エチルアクリルアミド共重合体水溶液の相転移挙動に及ぼす立体規則性と組成の影響, 第66回高分子討論会, Sep. 2017.
108.	Yoshiroh Ishikawa, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : 光照射による高分岐ポリマーの合成 —アクリルアミド系モノマーとN,N'-メチレンビスアクリルアミドの開始剤組込みラジカル共重合, 第66回高分子討論会, Sep. 2017.
109.	Ikuma Wakamatsu, Yudai Ishii, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute, 菅沼こと and 朝倉哲郎 : NMRスペクトルの多変量解析によるポリ乳酸の立体規則性解析(5):教師データの拡張による解析精度の向上, 第66回高分子討論会, Sep. 2017.
110.	Yuki Terai, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : rac-LAの立体特異性開環重合を指向したシンプルなチオウレア型有機分子触媒の設計, 第66回高分子討論会, Sep. 2017.
111.	Kohei Toda, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : rac-LAの立体特異性開環重合を指向した新規キラルグアニジン触媒の開発, 第66回高分子討論会, Sep. 2017.
112.	Ryotaro Kizu, Jumpei Hashimoto, Nenji Munekane, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : Li塩とルイス塩基存在下でのイソブチルビニルエーテルのカチオン重合ー重合機構の考察ー, 第66回高分子討論会, Sep. 2017.
113.	Tomohiro Hirano : 立体構造の制御されたポリ(N-アルキルアクリルアミド)ー合成からキャラクタリゼーションまでー, 第66回高分子討論会, Sep. 2017.
114.	Tomohiro Hirano : モノマーの錯化を利用したラジカル重合の反応制御, 第88回高分子若手研究会[関西], Aug. 2017.
115.	Koki Maeda, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : poly(N-isopropylacrylamide-co-N-ethylacrylamide)水溶液の相転移挙動に及ぼす立体規則性と組成の影響, 第63回高分子研究発表会(神戸), Jul. 2017.
116.	Keita Kondoh, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : テトラtert-ブチル亜鉛酸ジリチウムを用いたポリブチレンサクシネートの合成, 第63回高分子研究発表会(神戸), Jul. 2017.
117.	Kohhei Yamada, Nenji Munekane, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : LiNTf2存在下でのカチオン重合によるポリビニルエーテルの立体規制の試み, 第63回高分子研究発表会(神戸), Jul. 2017.
118.	Tomoki Hirata, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体を用いた不可逆的重縮合による脂肪族ボリカーボネートの合成, 第66回高分子学会年次大会, May 2017.
119.	Ryotaro Kizu, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : N-ビニルイミダゾールのラジカル重合 – 錯形成を利用した反応制御, 第66回高分子学会年次大会, May 2017.
120.	Tomohiro Hirano : 立体規則性ポリ(N-アルキルアクリルアミド)-合成，感熱応答性，キャラクタリゼーション, 第158回東海高分子研究会講演会, Dec. 2016.
121.	Yoshiko Sogabe, Yukihiro Arakawa, Keiji Minagawa, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute and Yasushi Imada : 含フラビンポリメタクリル酸の合成とその触媒作用, 第49回酸化反応討論会, Nov. 2016. (Keyword) flavin / organocatalysts / oxidation
122.	竹内梨絵, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : マンデル酸と乳酸からなる立体規則性交互共重合体の合成, 2016年日本化学会中国四国支部大会, Nov. 2016.
123.	Yoshiko Sogabe, Yukihiro Arakawa, Keiji Minagawa, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute and Yasushi Imada : 高分子反応による高分子担持型フラビン触媒の合成及び触媒機能評価, 2016日本化学会中国四国支部大会, Nov. 2016. (Keyword) flavin / organocatalysts / oxidation
124.	小川修平, 妹尾美咲, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 種々の高分子反応により得られたビニルアルコール-酢酸ビニル共重合体の連鎖解析酢酸ビニル-ビニルアルコール共重合体のグラジエント溶出LCによる分析, 第21回高分子分析討論会, Oct. 2016.
125.	Tomohiro Hirano, 松本大志, Miyuki Oshimura and Koichi Ute : 1H NMRによるMMA-BnMA共重合体の連鎖解析 - 1種類のサンプルで決定したモノマー反応性比, 第65回高分子討論会, Sep. 2016.
126.	亀谷俊輔, 関根素馨, 大窪貴洋, Tomohiro Hirano, Koichi Ute and 朝倉哲郎 : ボリ(N-イソプロピルアクリルアミド)の立体規則性で異なるゲル化挙動とNMRによる分子レベル解析, 第65回高分子討論会, Sep. 2016.
127.	Miyuki Oshimura, 寺井裕貴, Yukihiro Arakawa, Tomohiro Hirano, Keiji Minagawa, Yasushi Imada and Koichi Ute : チオウレア型およびグアニジン型有機分子触媒を用いたrac-ラクチドの開環重合, 第65回高分子討論会, Sep. 2016.
128.	妹尾美咲, 小川修平, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 種々の高分子反応により得られたビニルアルコール-酢酸ビニル共重合体の連鎖解析(2), 第65回高分子討論会, Sep. 2016.
129.	菅沼こと, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute, Cheng H.N. and 朝倉哲郎 : 溶媒効果を利用した溶液NMRによるポリ乳酸の詳細な立体規則性解析, 第65回高分子学会年次大会, May 2016.
130.	Miyuki Oshimura, 魚住秀行, 仙波史也, Tomohiro Hirano and Koichi Ute : モノマー連鎖の異なるメタクリル酸エステル共重合体への糖修飾, 第65回高分子学会年次大会, May 2016.
131.	寺井裕貴, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : チオウレア型有機分子触媒を用いたラクチドの立体特異性開環重合, 第65回高分子学会年次大会, May 2016.
132.	妹尾美咲, 小川修平, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 種々の高分子反応により得られたビニルアルコール-酢酸ビニル共重合体の連鎖解析, 第65回高分子学会年次大会, May 2016.
133.	許祐菁, 莊明曄, Tomohiro Hirano and Koichi Ute : 種々の高分子反応で合成したメタクリル酸メチル-メタクリル酸ベンジル共重合体の連鎖解析, 第65回高分子学会年次大会, May 2016.
134.	横田大地, 中西由佳, Tomohiro Hirano and Koichi Ute : ポリメタクリル酸の段階的エステル化で生成する共重合体の連鎖制御と連鎖解析(3), 第65回高分子学会年次大会, May 2016.
135.	亀谷俊輔, 関根素馨, 大窪貴洋, Tomohiro Hirano, Koichi Ute and 朝倉哲郎 : NMRを用いた水の分子運動性評価に基づく立体規則性の異なるポリ(N-イソプロピルアクリルアミド)のゲル化挙動解析, 第65回高分子学会年次大会, May 2016.
136.	Tomohiro Hirano, 橋本惇平, 三輪洋平, Miyuki Oshimura and Koichi Ute : LiN(SO2CF3)2存在下でのビニルエーテルの熱誘起カチオン重合, 第65回高分子学会年次大会, May 2016.
137.	許祐菁, 横田大地, Tomohiro Hirano and Koichi Ute : 種々の高分子反応で合成したメタクリル酸エステル共重合体のモノマー連鎖の解析, 第20回高分子分析討論会, Oct. 2015.
138.	斉傲晨, Tomoki Yabutani, Toshio Takayanagi and Tomohiro Hirano : ポリペルオキシド修飾シリカゲルの合成とその評価, 第5回CSJ化学フェスタ, Oct. 2015.
139.	大久保俊希, Miyuki Oshimura, Tomohiro Hirano, 百瀬陽 and Koichi Ute : グラジエント溶出LCによるメタクリル酸メチル-メタクリル酸ベンジル共重合体の分析, 第64回高分子討論会, Sep. 2015.
140.	Miyuki Oshimura, 日裏貴裕, 百瀬陽, 三輪洋平, Tomohiro Hirano and Koichi Ute : オニウム塩触媒を用いたヒドロキシカルボン酸の直接重縮合, 第64回高分子討論会, Sep. 2015.
141.	魚住秀行, 仙波史也, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : モノマー連鎖の異なるメタクリル酸エステル共重合体への糖修飾, 第64回高分子討論会, Sep. 2015.
142.	小笠佑太, 瀬形匡, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Li塩存在下でのN-アリルメタクリルアミドの化学選択性ラジカル重合, 第64回高分子討論会, Sep. 2015.
143.	Tomohiro Hirano, 山本博明, 小野綾希子, Miyuki Oshimura and Koichi Ute : アクリルアミド系共重合体の感熱応答挙動に及ぼす立体規則性とモノマー連鎖の影響, 第64回高分子討論会, Sep. 2015.
144.	横田大地, 中西由佳, Tomohiro Hirano and Koichi Ute : ポリメタクリル酸の段階的エステル化で生成する共重合体の連鎖制御と連鎖解析(2), 第64回高分子討論会, Sep. 2015.
145.	多田貴則, Tomohiro Hirano, Koichi Ute, 東海林竜也, 喜多村昇 and 坪井泰之 : 立体規則性の制御によって加速する温度応答性高分子水溶液の相分離速度, 第61回高分子研究発表会(神戸), Jul. 2015.
146.	宗包稔司, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Li 塩存在下でのメタクリル酸メチルとN-メチルメタクリルアミドのラジカル共重合, 第61回高分子研究発表会(神戸), Jul. 2015.
147.	仙波史也, 魚住秀行, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : メタクリル酸エステル共重合体への D-グルコサミンの修飾, 第64回高分子学会年次大会, May 2015.
148.	横田大地, 中西由佳, Tomohiro Hirano and Koichi Ute : ポリメタクリル酸の段階的エステル化で生成する共重合体の連鎖制御と連鎖解析, 第64回高分子学会年次大会, May 2015.
149.	小笠佑太, 瀬形匡, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Li 塩存在下での N-アリルメタクリルアミドのラジカル重合, 第64回高分子学会年次大会, May 2015.
150.	亀谷俊輔, 岩本脩成, 関根素馨, 大窪貴洋, 鞍野佳孝, Tomohiro Hirano, Koichi Ute, ボウティスグレゴリー and 朝倉哲郎 : 高分子水溶液および高分子含水状態での高分子および水のダイナミクスに関するNMR研究, 第64回高分子学会年次大会, May 2015.
151.	Miyuki Oshimura, 日裏貴裕, 百瀬陽, 三輪洋平, Tomohiro Hirano and Koichi Ute : 直接重縮合によるポリマンデル酸の合成とステレオコンプレックス結晶の作成, 第64回高分子学会年次大会, May 2015.
152.	Tomoki Yabutani, 西前真治, 磯部能史, Yohei Yamada, Toshio Takayanagi and Tomohiro Hirano : カルボキシル基導入高分岐ポリマー及び活性炭を用いるヘキサメチレンテトラミンの除去, 第75回分析化学討論会, May 2015.
153.	寺守拓也, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体によるN-イソプロピルアクリルアミドの重合の開始反応に関する研究, 日本化学会第95春季年会, Mar. 2015.
154.	尾田祐貴, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 亜鉛アート錯体による温和な条件下でのエステル交換反応, 日本化学会第95春季年会, Mar. 2015.
155.	天野真也, 宮本裕也, 木村浩, Ken Yoshida, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 高温NMRによるポリビニルピロリドンの構造解析, 第55回高圧討論会, Nov. 2014.
156.	大久保俊希, Miyuki Oshimura, Tomohiro Hirano, 百瀬陽 and Koichi Ute : グラジエント溶出LCを用いたメタクリル酸エステル共重合体の分析, 第19回高分子分析討論会, Oct. 2014.
157.	三輪洋平, 浦川理, 信川省吾, 寺守拓也, Tomohiro Hirano and 沓水洋一 : 重水素ラベル法による高分子末端の特性解析, 第63回高分子討論会, Sep. 2014.
158.	多田貴則, Tomohiro Hirano, Koichi Ute, 東海林竜也, 喜多村昇 and 坪井泰之 : 濃度によって顕著に変化するシンジオタクチック-リッチPNIPAM水溶液の相分離ダイナミクス, 第63回高分子討論会, Sep. 2014.
159.	多田貴則, 勝本之晶, Tomohiro Hirano, Koichi Ute, 東海林竜也, 喜多村昇 and 坪井泰之 : 温度応答性高分子水溶液の相分離ダイナミクスの立体規則性依存性, 第63回高分子討論会, Sep. 2014.
160.	Miyuki Oshimura, 本山敬悟, 北山浩之, 池田善彦, Tomohiro Hirano and Koichi Ute : NMRとMSの相関分析による新規ポリアミンの構造解析, 第63回高分子討論会, Sep. 2014.
161.	大久保俊希, Miyuki Oshimura, Tomohiro Hirano, 百瀬陽 and Koichi Ute : グラジエント溶出LCによるメタクリル酸エステル共重合体の分析, 第63回高分子討論会, Sep. 2014.
162.	鞍野佳孝, 三輪洋平, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Li塩存在下におけるアクリルアミド誘導体のラジカル重合機構の検討, 第63回高分子討論会, Sep. 2014.
163.	Miyuki Oshimura, 日裏貴裕, 齋藤彰範, 福岡誠, 逸見祐介, 百瀬陽, Tomohiro Hirano and Koichi Ute : オニウム塩触媒を用いた直接重縮合による光学活性なポリマンデル酸の合成, 第63回高分子討論会, Sep. 2014.
164.	魚住秀行, 小西結貴, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : D-グルコサミンを側鎖に修飾した糖鎖ポリマーの合成と応用, 第63回高分子討論会, Sep. 2014.
165.	寺守拓也, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : tert-ブチル亜鉛酸リチウムを開始剤とするN-イソプロピルアクリルアミドの重合 — ハロゲン-メタル交換反応を用いた開始剤効率の改善法の検討, 第63回高分子討論会, Sep. 2014.
166.	Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : NMRスペクトルの多変量解析による合成高分子の一次構造解析, 日本分析化学会第63年会, Sep. 2014.
167.	魚住秀行, 小西結貴, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : D-グルコサミンを側鎖に修飾したポリヒドロキシウレタンの合成と応用, 第60回高分子研究発表会(神戸), Jul. 2014.
168.	尾田祐貴, 岡崎量, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : tert-ブチル亜鉛酸リチウムを用いた末端カルボキシル基を有するポリエステルの合成, 第60回高分子研究発表会(神戸), Jul. 2014.
169.	橋本惇平, Miyuki Oshimura, Tomohiro Hirano, Yoshihiro Uto and Koichi Ute : 立体規則性の規制されたポリ[N-(2-ヒドロキシプロピル)メタクリルアミド]の合成, 第60回高分子研究発表会(神戸), Jul. 2014.
170.	天野真也, 宮本裕也, Miyuki Oshimura, 内田哲也, Ken Yoshida, Tomohiro Hirano and Koichi Ute : 立体規則性の規制されたポリ(1-ビニル-2-ピロリドン)の合成, 第60回高分子研究発表会(神戸), Jul. 2014.
171.	日裏貴裕, Miyuki Oshimura, 齋藤彰範, 福岡誠, 逸見祐介, 百瀬陽, Tomohiro Hirano and Koichi Ute : オニウム塩触媒を用い直接重縮合により合成したポリマンデル酸の熱特性評価, 第63回高分子学会年次大会, May 2014.
172.	鞍野佳孝, 斉藤辰也, Koichiro Tsuchiya, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : Li塩存在下でのアクリレート系モノマーのラジカル重合の機構, 第63回高分子学会年次大会, May 2014.
173.	Tomohiro Hirano, 瀬形匡, 三輪洋平, Miyuki Oshimura and Koichi Ute : Li塩存在下でのN-n-プロピルメタクリルアミドの立体特異性ラジカル重合の機構, 第63回高分子学会年次大会, May 2014.
174.	寺守拓也, 本山敬悟, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : tert-ブチル亜鉛酸リチウムを開始剤とするN-イソプロピルアクリルアミドの重合の反応機構, 第63回高分子学会年次大会, May 2014.
175.	Miyuki Oshimura, 岡崎量, 尾田祐貴, Tomohiro Hirano and Koichi Ute : 末端にカルボキシル基を有するポリカプロラクトンの選択的合成, 第63回高分子学会年次大会, May 2014.
176.	百瀬陽, 前田智也, 直野辰哉, 浅川聖子, 坂尾竜一, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : NMRスペクトルの多変量解析によるアクリル系共重合体の一次構造解析, 第52回NMR討論会, Nov. 2013.
177.	菅野夏基, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : PTBMAから変換したMMA-TBMA共重合体とPMMAの13C NMRスペクトルの多変量解析, 第18回高分子分析討論会, Sep. 2013.
178.	八幡莉紗, 菅沼こと, 朝倉哲郎, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : NMRスペクトルの多変量解析によるポリ乳酸の立体規則性解析(3), 第18回高分子分析討論会, Sep. 2013.
179.	Shinji Nishimae, 岸田千紘, Tomoki Yabutani, Toshio Takayanagi, Tomohiro Hirano and Koichi Ute : 末端官能性高分岐ポリマー電解質を用いたポリイオンコンプレックスの形成に基づく溶存有機物の回収, 日本分析化学会第62年会, Sep. 2013.
180.	多田貴則, 勝本之晶, Koichi Ute, Tomohiro Hirano, Karel Goossens, 雲林院宏, Johan Hofkens, 喜多村昇 and 坪井泰之 : 温度応答性高分子水溶液の相分離ダイナミクスの立体規則性依存性, 第62回高分子討論会, Sep. 2013.
181.	菅沼こと, 原寛, 松田裕生, 八幡莉紗, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute, H.N. Cheng and 朝倉哲郎 : モデル化合物を活用したボリ乳酸のNMR立体規則性解析, 第62回高分子討論会, Sep. 2013.
182.	船岡耕治, 原田学人, 小野智行, Tomohiro Hirano and Koichi Ute : 高分子反応で合成したメタクリル酸メチル-メタクリル酸ベンジル共重合体の13C NMRスペクトルと多変量解析による連鎖解析, 第62回高分子討論会, Sep. 2013.
183.	松本大志, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : NMRスペクトルの多変量解析によるポリN,N-ジメチルアクリルアミドの立体規則性の解析, 第62回高分子討論会, Sep. 2013.
184.	瀬形匡, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : アルカリ金属塩存在下でのN-アルキルメタクリルアミドの立体特異性重合およびポリマー水溶液の相転移挙動, 第62回高分子討論会, Sep. 2013.
185.	Miyuki Oshimura, 日裏貴裕, 齋藤彰範, 福岡誠, 逸見祐介, 百瀬陽, Tomohiro Hirano and Koichi Ute : オニウム塩触媒を用いたマンデル酸の直接重縮合, 第62回高分子討論会, Sep. 2013.
186.	松本大志, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : poly(N,N-ジメチルアクリルアミド)のNMRスペクトルにおける多変量解析, 第59回高分子研究発表会(神戸), Jul. 2013.
187.	瀬形匡, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : N-アルキルメタクリルアミドの重合挙動に及ぼすアルカリ金属塩の添加効果, 第59回高分子研究発表会(神戸), Jul. 2013.
188.	菅沼こと, 原寛, 松田裕生, 八幡莉紗, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute, H.N. Cheng and 朝倉哲郎 : ポリ乳酸3量体モデル化合物の合成とNMR立体規則性解析, 第62回高分子学会年次大会, May 2013.
189.	原田学人, 小野智行, 船岡耕治, 三好恭平, 許祐菁, Tomohiro Hirano and Koichi Ute : 高分子反応で合成したメタクリル酸エステル共重合体の13C NMRスペクトルの多変量解析, 第62回高分子学会年次大会, May 2013.
190.	八幡莉紗, 菅沼こと, 朝倉哲郎, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : NMRスペクトルの多変量解析を用いたポリ乳酸の立体規則性解析(2), 第62回高分子学会年次大会, May 2013.
191.	三角健太, 宮本英樹, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : tert-ブチル亜鉛酸リチウムを開始剤とするメタクリル酸のアニオン重合, 第62回高分子学会年次大会, May 2013.
192.	岡崎量, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : tert-ブチル亜鉛酸リチウムを用いたε-カプロラクトンとメタクリル酸2-ヒドロキシエチルの共重合, 第62回高分子学会年次大会, May 2013.
193.	瀬形匡, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : N-アルキルメタクリルアミドの重合挙動に対するLi塩の効果, 第62回高分子学会年次大会, May 2013.
194.	鞍野佳孝, 斉藤辰也, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : アクリレート系モノマーのラジカル重合におけるアルカリ金属塩の加速効果, 第62回高分子学会年次大会, May 2013.
195.	西前真治, 磯部能史, Tomoki Yabutani, Toshio Takayanagi, Tomohiro Hirano and Koichi Ute : 末端官能性高分岐ポリマーを用いたポリイオンコンプレックスの合成とその特性評価, 2012年日本化学会西日本大会, 54, Nov. 2012.
196.	Shinji Nishimae, Chihiro Kishida, 磯部能史, Tomoki Yabutani, Toshio Takayanagi, Tomohiro Hirano and Koichi Ute : 開始剤組み込みラジカル重合法を用いた末端官能性高分岐ポリマー電解質の合成とその化学的特性評価, 第2回CSJ化学フェスタ2012, Oct. 2012.
197.	木村友梨香, 中山正道, 斉藤辰也, Tomohiro Hirano, 金澤秀子 and 岡野光夫 : 立体特異性を制御したpoly(N-isopropylacrylamide)薄膜上における温度依存的細胞接着挙動の評価, 第61回高分子討論会, Sep. 2012.
198.	菅沼こと, 堀内健, 松田裕生, Cheng H.N., 八幡莉紗, Miyuki Oshimura, Tomohiro Hirano, Koichi Ute and 朝倉哲郎 : ポリ乳酸のトリアッドモデル化合物の合成，コンフォメーション解析ならびにNMR構造解析, 第61回高分子討論会, Sep. 2012.
199.	八幡莉紗, Tomohiro Hirano, Miyuki Oshimura, Koichi Ute, 菅沼こと and 朝倉哲郎 : NMRスペクトルの多変量解析によるポリ乳酸の立体規則性解析, 第61回高分子討論会, Sep. 2012.
200.	菅野夏基, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : MMA-TBMA共重合体から変換したPMMAの13C NMRスペクトルの多変量解析, 第61回高分子討論会, Sep. 2012.
201.	小野綾希子, 山本博明, 森健, 前田寧, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : ポリ(N-エチルアクリルアミド-co-N-n-プロピルアクリルアミド)水溶液の相転移挙動に及ぼす立体規則性と共重合組成の影響, 第61回高分子討論会, Sep. 2012.
202.	小西結貴, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 五員環環状ジカーボネートとジアミンとの重付加反応により得られるポリヒドロキシウレタンの水溶化, 第61回高分子討論会, Sep. 2012.
203.	岡崎量, 田中佑志, 金子俊幸, 加地栄一, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : tert-ブチル亜鉛酸リチウムを用いた環状エステルの開環共重合, 第61回高分子討論会, Sep. 2012.
204.	田中佑志, 岡崎量, 金子俊幸, 加地栄一, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : tert-ブチル亜鉛酸リチウムを用いたラクチドの開環重合, 第61回高分子討論会, Sep. 2012.
205.	Shinji Nishimae, Chihiro Kishida, 磯部能史, Tomoki Yabutani, Toshio Takayanagi, Tomohiro Hirano and Koichi Ute : 開始剤組み込みラジカル重合法を用いた末端イオン性高分岐ポリマーの合成とその特性評価, 第18回中国四国支部分析化学若手セミナー, Aug. 2012.
206.	岡崎量, 金子俊幸, 加地栄一, 百瀬陽, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : tert-ブチル亜鉛酸リチウムを用いた環状エステルの開環重合, 第58回高分子研究発表会(神戸), Jul. 2012.
207.	宮本裕也, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 立体規則性に分布のあるポリ(N-イソプロピルアクリルアミド)からのシンジオタクチックポリマーの分別, 第58回高分子研究発表会(神戸), Jul. 2012.
208.	斉藤辰也, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : アクリレート系モノマーのラジカル重合におけるLi塩の添加効果-重合速度・立体規則性に及ぼす影響-, 第58回高分子研究発表会(神戸), Jul. 2012.
209.	小野綾希子, 山本博明, 森健, 前田寧, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : ポリ(N-エチルアクリルアミド-co-N-n-プロピルアクリルアミド)水溶液の相転移挙動に及ぼす立体規則性と組成の影響, 第58回高分子研究発表会(神戸), Jul. 2012.
210.	岡崎量, 金子俊幸, 加地栄一, 百瀬陽, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : tert-ブチル亜鉛酸リチウムを用いたε-カプロラクトンの開環重合, 第61回高分子学会年次大会, May 2012.
211.	宮本英樹, 浅野智子, 阿部愛美, 金子俊幸, 加地栄一, 百瀬陽, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : tert-ブチル亜鉛酸リチウムを用いたメタクリル酸メチルとメタクリル酸tert-ブチルの共重合, 第61回高分子学会年次大会, May 2012.
212.	齋藤彰範, 福岡誠, 逸見祐介, 百瀬陽, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : オルトゴナルな保護基を用いた均一マンデル酸オリゴマーの合成とマンデル酸の直接重縮合, 第61回高分子学会年次大会, May 2012.
213.	一宮宜也, 三好恭平, Tomohiro Hirano and Koichi Ute : メタクリル酸メチルと塩化ビニリデンのラジカル共重合に及ぼすルイス酸の効果, 第61回高分子学会年次大会, May 2012.
214.	瀬形匡, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : N- n-プロピルメタクリルアミドの低温ラジカル重合, 第61回高分子学会年次大会, May 2012.
215.	斉藤辰也, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : アクリレート系モノマーのラジカル重合におけるLi塩の加速効果, 第61回高分子学会年次大会, May 2012.
216.	船岡耕治, 浅川聖子, 直野辰哉, 坂尾竜一, Tomohiro Hirano and Koichi Ute : ルイス酸存在下のラジカル重合で得られたメタクリル酸エステル共重合体のモノマー連鎖の解析, 第61回高分子学会年次大会, May 2012.
217.	正木孝二, 大河原慎一, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ニトロベンゼン中でのニトリルゴムの脱架橋反応, 2011年日本化学会西日本大会要旨集, Nov. 2011.
218.	石野裕之, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : N-フェニルアクリルアミド誘導体のラジカル重合における立体特異性制御の試み, 2011年日本化学会西日本大会要旨集, Nov. 2011.
219.	斉藤辰也, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : アクリレート系モノマーのラジカル重合におけるアルカリ金属塩の添加効果, 2011年日本化学会西日本大会要旨集, Nov. 2011.
220.	直野辰哉, 百瀬陽, Tomohiro Hirano and Koichi Ute : 13C NMRスペクトルの多変量解析によるメタクリル系三元共重合体の連鎖分布の推定, 2011年日本化学会西日本大会要旨集, Nov. 2011.
221.	庵本卓矢, 梅澤奈央, Tomohiro Hirano, 百瀬陽, 勝本之晶, Miyuki Oshimura and Koichi Ute : 立体規則性の異なるポリマーのNMRスペクトルの多変量解析 ― 立体規則性による帰属, 2011年日本化学会西日本大会要旨集, Nov. 2011.
222.	阿部愛美, 浅野智子, 加地栄一, 金子俊幸, 百瀬陽, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : アート錯体によるメタクリレート系モノマーの重合特性, 2011年日本化学会西日本大会要旨集, Nov. 2011.
223.	古谷喬大, 加地栄一, 金子俊幸, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : フッ素化アルコール存在下N-n-プロピル-α-フルオロアクリルアミドの立体特異性重合, 2011年日本化学会西日本大会要旨集, Nov. 2011.
224.	四宮未来, 森上晃弘, Tomohiro Hirano and Koichi Ute : 酒石酸エステル存在下でのN-アリル-N-tert-ブチルアクリルアミドの不斉ラジカル環化重合, 2011年日本化学会西日本大会要旨集, Nov. 2011.
225.	久保宜也, Tomohiro Hirano and Koichi Ute : メタクリル酸メチルと塩化ビニリデンのラジカル共重合に及ぼす添加剤の効果, 2011年日本化学会西日本大会要旨集, Nov. 2011.
226.	斉藤辰也, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : アクリレート系モノマーのラジカル重合におけるLi塩の添加効果, 第60回高分子討論会予稿集, Vol.60, No.2, 2425, Sep. 2011.
227.	百瀬陽, 上池亮太, Tomohiro Hirano and Koichi Ute : 13C NMRスペクトルの多変量解析による高分岐共重合体の一次構造解析, 第60回高分子討論会予稿集, Vol.60, No.2, 3612-3613, Sep. 2011.
228.	磯部能史, Tomohiro Hirano, Koichi Ute, Junko Motonaka and Tomoki Yabutani : グリシジル基含有メタクリレート高分岐ポリマーの合成とその物性評価, 日本分析化学会第60年会, 156, Sep. 2011.
229.	浅野智子, 阿部愛美, 金子俊幸, 加地栄一, 百瀬陽, Tomohiro Hirano and Koichi Ute : アート錯体t-Bu4ZnLi2によるメタクリル酸エステルの重合-リビング性と立体特異性の検討, 第60回高分子学会年次大会予稿集, Vol.60, No.1, 463, May 2011.
230.	古谷喬大, 加地栄一, 金子俊幸, Tomohiro Hirano and Koichi Ute : フッ素化アルコール存在下t-Bu4ZnLi2によるアクリルアミド誘導体のアニオン重合, 第60回高分子学会年次大会予稿集, Vol.60, No.1, 464, May 2011.
231.	小野綾希子, 山本博明, Takeshi Mori, Tomohiro Hirano and Koichi Ute : N-エチルアクリルアミドを一成分とする立体規則性共重合体の合成と相転移挙動, 第60回高分子学会年次大会予稿集, Vol.60, No.1, 914, May 2011.
232.	坂尾竜一, 直野辰哉, 浅川聖子, 百瀬陽, Tomohiro Hirano and Koichi Ute : メタクリル酸エステル共重合体の13C NMRスペクトルの多変量解析による立体規則性の解析, 第60回高分子学会年次大会予稿集, Vol.60, No.1, 837, May 2011.
233.	Tomohiro Hirano, 梅澤奈央, 庵本卓矢, 百瀬陽 and Koichi Ute : ポリ(N-イソプロピルアクリルアミド)のNMRスペクトルの多変量解析による帰属, 第60回高分子学会年次大会予稿集, Vol.60, No.1, 836, May 2011.
234.	関口沙織, Tomohiro Hirano, Masaki Nishiuchi and Koichi Ute : 光学活性ジオール存在下でのN-アクリロイル-2-オキサゾリジノン誘導体の低温光ラジカル重合, 日本化学会第91春季年会講演予稿集, Mar. 2011.
235.	前田智也, 直野辰哉, 百瀬陽, Tomohiro Hirano and Koichi Ute : メタクリル酸エステルの二元および三元共重合体のDOSYによるキャラクタリゼーションならびに13C NMRスペクトルの多変量解析, 日本化学会西日本大会2010要旨集, Nov. 2010.
236.	磯部能史, 上池亮太, Tomohiro Hirano, Koichi Ute, Yukako Hayashi, Junko Motonaka and Tomoki Yabutani : メタクリレート系高分岐ポリマーの合成と電気化学材料への応用, 日本化学会西日本大会2010要旨集, Nov. 2010.
237.	直野辰哉, 百瀬陽, 前田智也, Tomohiro Hirano and Koichi Ute : 13C NMR スペクトルの多変量解析によるアクリル系共重合体の連鎖解析, 第59回高分子討論会予稿集, Vol.59, No.2, 3036, Sep. 2010.
238.	山本博明, Tomohiro Hirano and Koichi Ute : N-アルキルアクリルアミド共重合体水溶液の相転移挙動に及ぼす立体規則性の影響, 第59回高分子討論会予稿集, Vol.59, No.2, 2616, Sep. 2010.
239.	関口沙織, Tomohiro Hirano, Masaki Nishiuchi and Koichi Ute : 光学活性ジオール存在下での N-アクリロイル-2-オキサゾリジノン誘導体の低温ラジカル重合, 第59回高分子討論会予稿集, Vol.59, No.2, 2614, Sep. 2010.
240.	森上晃弘, Tomohiro Hirano and Koichi Ute : N-メチル-N-(2-ピリジル)アクリルアミドのコンホメーションスイッチングによるラジカル重合の立体特異性制御, 第59回高分子討論会予稿集, Vol.59, No.2, 2615, Sep. 2010.
241.	古谷喬大, 山本博明, Tomohiro Hirano and Koichi Ute : N-アルキル-α-フルオロアクリルアミドの立体特異性ラジカル重, 第59回高分子討論会予稿集, Vol.59, No.2, 2613, Sep. 2010.
242.	百瀬陽, 前田智也, 直野辰哉, 浅川聖子, Tomohiro Hirano and Koichi Ute : 13C NMRスペクトルの多変量解析によるアクリル系共重合体の一次構造解析, 第59回高分子討論会予稿集, Vol.59, No.2, 3162-3163, Sep. 2010.
243.	三代木良太, 金川裕樹, Tomohiro Hirano, Koichi Ute, Tsuneyuki Sato and 原口将幸 : アクリル酸tert-ブチルとジビニルベンゼンを用いた開始剤組込みラジカル共重合による可溶性高分岐コポリマーの合成と高分子反応, 第56回高分子研究発表会(神戸)講演要旨集, Jul. 2010.
244.	上池亮太, 百瀬陽, Tomohiro Hirano and Koichi Ute : メタクリレート系高分岐共重合体の13C NMRスペクトルの多変量解析, 第56回高分子研究発表会(神戸)講演要旨集, Jul. 2010.
245.	山本博明, Tomohiro Hirano and Koichi Ute : シンジオタクチックN-アルキルアクリルアミド共重合体水溶液における立体規則性と共重合組成の影響, 第56回高分子研究発表会(神戸)講演要旨集, Jul. 2010.
246.	Tomohiro Hirano, 山本博明 and Koichi Ute : シンジオタクチックN-アルキルアクリルアミド共重合体水溶液の相転移に及ぼす組成の影響, 第59回高分子学会年次大会予稿集, Vol.59, No.1, 1147, May 2010.
247.	森上晃弘, Tomohiro Hirano and Koichi Ute : コンホメーションスイッチングを利用したN-メチル-N-(2-ピリジル)アクリルアミドのラジカル重合の立体特異性制御, 第59回高分子学会年次大会予稿集, Vol.59, No.1, 378, May 2010.
248.	関口沙織, Tomohiro Hirano and Koichi Ute : 酒石酸ジイソプロピル存在下でのN-アクリロイルー2-オキサゾリジノンの低温ラジカル重合, 第59回高分子学会年次大会予稿集, Vol.59, No.1, 477, May 2010.
249.	古谷喬大, 山本博明, Tomohiro Hirano and Koichi Ute : N-n-プロピル-α-フルオロアクリルアミドの低温ラジカル重合, 第59回高分子学会年次大会予稿集, Vol.59, No.1, 475, May 2010.
250.	四宮未来, 森上晃弘, Tomohiro Hirano and Koichi Ute : 酒石酸エステル存在下でのN-アリル-N-tert-ブチルアクリルアミドの不斉ラジカル環化重合, 第59回高分子学会年次大会予稿集, Vol.59, No.1, 476, May 2010.
251.	浅川聖子, 古賀徳仁, 百瀬陽, Tomohiro Hirano and Koichi Ute : アクリレート系モノマーのラジカル共重合におけるモノマー反応性比におよぼす極性化合物の効果, 第59回高分子学会年次大会予稿集, Vol.59, No.1, 474, May 2010.
252.	庵本卓矢, 上池亮太, 百瀬陽, Tomohiro Hirano and Koichi Ute : 多変量解析によるポリ(1-ビニルピロリドン)のNMRスペクトルの帰属, 第59回高分子学会年次大会予稿集, Vol.59, No.1, 760, May 2010.
253.	百瀬陽, 上池亮太, Tomohiro Hirano and Koichi Ute : 13C NMR スペクトルの多変量解析による高分岐共重合体のキャラクタリゼーション, 第59回高分子学会年次大会予稿集, Vol.59, No.1, 758, May 2010.
254.	前田智也, 服部康佑, 百瀬陽, Tomohiro Hirano and Koichi Ute : DOSYによるアクリル系共重合体のキャラクタリゼーション-共重合組成の分子量依存性, 第59回高分子学会年次大会予稿集, Vol.59, No.1, 759, May 2010.
255.	直野辰哉, 百瀬陽, 前田智也, Tomohiro Hirano and Koichi Ute : 13C NMR スペクトルの多変量解析によるアクリル系共重合体の連鎖解析, 第59回高分子学会年次大会予稿集, Vol.59, No.1, 757, May 2010.
256.	森上晃弘, Tomohiro Hirano and Koichi Ute : アクリルアミド誘導体のラジカル重合-モノマーのコンホメーションスイッチングを利用した立体特異性の制御, 日本化学会西日本大会2009要旨集, Nov. 2009.
257.	上池亮太, 百瀬陽, Tomohiro Hirano and Koichi Ute : 13C NMRスペクトルの多変量解析による分岐ポリマーのキャラクタリゼーション, 第14回高分子分析討論会講演要旨集, Nov. 2009.
258.	百瀬陽, 前田智也, 服部康佑, Tomohiro Hirano and Koichi Ute : 13C NMRスペクトルの多変量解析によるアクリル系三元共重合体のキャラクタリゼーション, 第14回高分子分析討論会講演要旨集, Nov. 2009.
259.	前田智也, 古賀徳仁, 百瀬陽, Tomohiro Hirano and Koichi Ute : MMA-HEMA共重合体のDOSYならびに13C NMRスペクトルの多変量解析によるキャラクタリゼーション, 第14回高分子分析討論会講演要旨集, Nov. 2009.
260.	百瀬陽, 前田智也, 服部康佑, Tomohiro Hirano and Koichi Ute : 13C NMRスペクトルの多変量解析によるアクリル系二元および三元共重合体のキャラクタリゼーション, 第58回高分子討論会予稿集, Vol.58, No.2, 3211-3212, Sep. 2009.
261.	山岡竜介, 宮崎誉将, Tomohiro Hirano and Koichi Ute : フッ素化アルコール存在下でのN-ブトキシカルボニルアクリルアミドのラジカル重合-錯体構造と立体特異性との関係, 第58回高分子討論会予稿集, Vol.58, No.2, 2346, Sep. 2009.
262.	山本博明, Tomohiro Hirano and Koichi Ute : シンジオタクチックN-アルキルアクリルアミド共重合体の合成―相転移挙動に及ぼす共重合組成と立体規則性の影響, 第58回高分子討論会予稿集, Vol.58, No.2, 2348, Sep. 2009.
263.	森上晃弘, Tomohiro Hirano and Koichi Ute : アクリルアミド誘導体のラジカル重合 - モノマーコンホメーションのスイッチングによる立体特異性の制御, 第58回高分子討論会予稿集, Vol.58, No.2, 2353, Sep. 2009.
264.	古賀徳仁, 池宮健朗, Tomohiro Hirano and Koichi Ute : MMAとHEMAのラジカル共重合におけるモノマー連鎖のランダム化とキャラクタリゼーション, 第58回高分子討論会予稿集, Vol.58, No.2, 2331, Sep. 2009.
265.	前田智也, 服部康佑, 百瀬陽, Tomohiro Hirano and Koichi Ute : MMA-HEMA共重合体の13C NMRスペクトルの多変量解析ならびにDOSYによるキャラクタリゼーション, 第58回高分子討論会予稿集, Vol.58, No.2, 3458, Sep. 2009.
266.	森上晃弘, Tomohiro Hirano and Koichi Ute : アクリルアミド誘導体のラジカル重合 - コンホメーションのスイッチングを利用した立体規制の試み, 第55回高分子研究発表会(神戸)講演要旨集, Jul. 2009.
267.	Tomohiro Hirano, 板東洋一, 山岡竜介, Takeshi Mori and Koichi Ute : ヘテロタクチックポリ(N-イソプロピルアクリルアミド)の合成と相転移挙動, 第58回高分子学会年次大会予稿集, Vol.58, No.1, 516, May 2009.
268.	池宮健朗, 古賀徳仁, Tomohiro Hirano and Koichi Ute : MMAとHEMAのラジカル共重合における共重合連鎖の規制とキャラクタリゼーション[III], 第58回高分子学会年次大会予稿集, Vol.58, No.1, 514, May 2009.
269.	山本博明, Tomohiro Hirano and Koichi Ute : N-n-プロピルアクリルアミドを1成分とするシンジオタクチック共重合体の合成ー相転移に及ぼす共重合組成の効果, 第58回高分子学会年次大会予稿集, Vol.58, No.1, 515, May 2009.
270.	前田智也, 服部康佑, 百瀬陽, Tomohiro Hirano and Koichi Ute : MMA-HEMA共重合体の13C NMRスペクトルの多変量解析[III], 第58回高分子学会年次大会予稿集, Vol.58, No.1, 980, May 2009.
271.	百瀬陽, 前田智也, 服部康佑, Tomohiro Hirano and Koichi Ute : 13C NMRスペクトルの多変量解析によるアクリル系共重合体の組成決定[II], 第58回高分子学会年次大会予稿集, Vol.58, No.1, 787, May 2009.
272.	那須翔, Tomohiro Hirano and Koichi Ute : 水素結合を利用したN-イソプロピルアクリルアミドの立体特異性ラジカル重合, 第13回高分子分析討論会講演要旨集, 125-126, Nov. 2008.
273.	百瀬陽, 服部康佑, 元永彰, Tomohiro Hirano and Koichi Ute : 13C NMRスペクトルの多変量解析によるアクリル系共重合体の組成決定, 第13回高分子分析討論会講演要旨集, 175-176, Nov. 2008.
274.	皆川綾子, 前田朋子, 四方俊幸, Tomohiro Hirano and Koichi Ute : ポリ(N-イソプロピルアクリルアミド)の水和におよぼす立体規則性の影響, 第56 回レオロジー討論会, Oct. 2008.
275.	山岡竜介, 宮崎誉将, Tomohiro Hirano and Koichi Ute : N-ブトキシカルボニルアクリルアミドのヘテロタクチックおよびシンジオタクチック特異性ラジカル重合, 第57回高分子討論会予稿集, Vol.57, No.2, 2668, Sep. 2008.
276.	板東洋一, 中村公彦, Tomohiro Hirano, 森健, 丸山厚 and Koichi Ute : シンジオタクチックポリ(N-n-プロピルアクリルアミド)の合成と相転移の協同性, 第57回高分子討論会予稿集, Vol.57, No.2, 2667, Sep. 2008.
277.	池宮健朗, 服部康佑, 久保川愛子, 古賀徳仁, Tomohiro Hirano and Koichi Ute : MMAとHEMAのラジカル共重合における共重合連鎖の規制とキャラクタリゼーション[II], 第57回高分子討論会予稿集, Vol.57, No.2, 2242-2243, Sep. 2008.
278.	Tomohiro Hirano, 山岡竜介, 宮崎誉将, 上窪貴裕 and Koichi Ute : アクリルアミド誘導体のラジカル重合--フッ素化アルコールを用いた立体特異性制御, 第57回高分子討論会予稿集, Vol.57, No.2, 2244-2245, Sep. 2008.
279.	前田朋子, 皆川綾子, 四方俊幸, Tomohiro Hirano and Koichi Ute : ポリ(N-イソプロピルアクリルアミド)の水和におよぼす立体規則性の影響, 第57回高分子討論会予稿集, Vol.57, No.2, 3147, Sep. 2008.
280.	服部康佑, 池宮健朗, 前田智也, Tomohiro Hirano and Koichi Ute : MMA-HEMA 共重合体の13C NMR スペクトルの多変量解析[II], 第57回高分子討論会予稿集, Vol.57, No.2, 3112, Sep. 2008.
281.	池宮健朗, 服部康佑, 久保川愛子, Tomohiro Hirano and Koichi Ute : MMAとHEMAのラジカル共重合における組成分布の規制とキャラクタリゼーション, 第54回高分子研究発表会(神戸)講演要旨集, Jul. 2008.
282.	三代木良太, Tomohiro Hirano, Koichi Ute, Tsuneyuki Sato and 原口将幸 : アクリル酸tert-ブチルとジビニルベンゼンを用いた開始剤組込みラジカル共重合による可溶性高分岐ポリマーの合成, 第54回高分子研究発表会(神戸)講演要旨集, Jul. 2008.
283.	池宮健朗, 久保川愛子, 服部康佑, Tomohiro Hirano and Koichi Ute : MMAとHEMAのラジカル共重合における共重合連鎖の規制とキャラクタリゼーション, 第57回高分子学会年次大会予稿集, Vol.57, No.1, 163, May 2008.
284.	久保川愛子, 服部康佑, 池宮健朗, Tomohiro Hirano and Koichi Ute : MMAとHEMAの添加剤存在下でのラジカル共重合による共重合連鎖の規制, 第57回高分子学会年次大会予稿集, Vol.57, No.1, 420, May 2008.
285.	服部康佑, 池宮健朗, 久保川愛子, Tomohiro Hirano and Koichi Ute : MMA-HEMA共重合体の13C NMRスペクトルの多変量解析, 第57回高分子学会年次大会予稿集, Vol.57, No.1, 923, May 2008.
286.	那須翔, Tomohiro Hirano and Koichi Ute : 水素結合を利用したN-イソプロピルアクリルアミドの立体特異性ラジカル重合ー液体クロマトグラフィーを用いた立体規則性分布の解析, 第57回高分子学会年次大会予稿集, Vol.57, No.1, 424, May 2008.
287.	Tomohiro Hirano, 宮崎誉将 and Koichi Ute : N-ブトキシカルボニルアクリルアミドのラジカル重合を経由した立体規則性ポリアクリルアミドの合成, 第57回高分子学会年次大会予稿集, Vol.57, No.1, 423, May 2008.
288.	Tomohiro Hirano, Takahiro Kamikubo, Kimihiko Nakamura and Koichi Ute : アルコールと水素結合で錯形成したN-アルキルアクリルアミドの立体特異性ラジカル重合, Polymer Preprints, Japan, Vol.56, No.2, 2809, Sep. 2007.
289.	Takamasa Miyazaki, Tomohiro Hirano and Koichi Ute : ルイス塩基存在下でのイミド基を有するモノマーのシンジオタクチック特異性ラジカル重合, Polymer Preprints, Japan, Vol.56, No.2, 2474, Sep. 2007.
290.	勝本之晶, 小山美沙緒 and Tomohiro Hirano : 立体制御されたpoly(N-isopropylacrylamide)の有機溶液中における局所構造と物理ゲル化, 第56回高分子学会年次大会予稿集, May 2007.
291.	Tomohiro Hirano and 石津秀朗 : 水素結合を利用したN-アルキルアクリルアミドのイソタクチック特異性ラジカル重合—ピリジンN-オキシド誘導体を用いた立体制御, 第56回高分子学会年次大会予稿集, May 2007.
292.	中村公彦, 谷香奈見 and Tomohiro Hirano : アルコールまたはルイス塩基存在下でのN-アルキルアクリルアミドの立体特異性ラジカル重合, 第56回高分子学会年次大会予稿集, May 2007.
293.	板東洋一 and Tomohiro Hirano : 光開始によるN-イソプロピルアクリルアミドのシンジオタクチック特異性ラジカル重合, 第56回高分子学会年次大会予稿集, May 2007.
294.	宮崎誉将 and Tomohiro Hirano : アクリルアミド誘導体のラジカル重合系における水素結合を介した立体制御, 第56回高分子学会年次大会予稿集, May 2007.
295.	那須翔, 升田周平 and Tomohiro Hirano : 酒石酸エステル存在下におけるN,N-二置換アクリルアミドの立体特異性ラジカル重合, 第56回高分子学会年次大会予稿集, May 2007.
296.	辰巳和也, 佐藤勇一郎, 桒名李果 and Tomohiro Hirano : 酒石酸エステル存在下でのビニルモノマーの立体特異性ラジカル重合, 第56回高分子学会年次大会予稿集, May 2007.
297.	上窪貴裕 and Tomohiro Hirano : アルコール存在下におけるN-イソプロピルアクリルアミドの立体特異性ラジカル重合, 第56回高分子学会年次大会予稿集, May 2007.
298.	小山美沙緒, 奥村雄也, Tomohiro Hirano, 田中丈幸 and 勝本之晶 : 立体制御されたpoly(N-isopropylacrylamide)の溶液中における局所構造, 第55回高分子討論会予稿集, Sep. 2006.
299.	石津秀朗, Tomohiro Hirano and Tsuneyuki Sato : ピリジンN-オキシド誘導体存在下でのN-アルキルアクリルアミドのラジカル重合ー水素結合を利用した立体制御ー, 第55回高分子討論会予稿集, Sep. 2006.
300.	宮崎誉将 and Tomohiro Hirano : N-アセチルアクリルアミドのラジカル重合ー水素結合を利用した立体制御ー, 第55回高分子討論会予稿集, Sep. 2006.
301.	藤岡靖弘, Tomohiro Hirano and Tsuneyuki Sato : ヘキサメチルホスホラミド存在下でのN-イソプロピルアクリルアミドのシンジオタクチック特異性ラジカル重合における溶媒効果, 第55回高分子討論会予稿集, Sep. 2006.
302.	Tomohiro Hirano and 上窪貴裕 : N-イソプロピルアクリルアミドのヘテロタクチック特異性ラジカル重合, 第55回高分子討論会予稿集, Sep. 2006.
303.	小山美沙緒, 奥村雄也, Tomohiro Hirano and 勝本之晶 : 赤外分光法による立体制御されたpoly(N-isopropylacrylamide)の溶液中における局所構造の研究, 第55回高分子学会年次大会予稿集, May 2006.
304.	升田周平, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : N,N-ジメチルアクリルアミドのシンジオタクチック特異性ラジカル重合, 第55回高分子学会年次大会予稿集, May 2006.
305.	石津秀朗, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ピリジンN-オキシド誘導体存在下でのN-アルキルアクリルアミドのイソタクチック特異性ラジカル重合, 第55回高分子学会年次大会予稿集, May 2006.
306.	上窪貴裕, 奥村雄也, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : アルコール存在下でのN-イソプロピルアクリルアミドのシンジオタクチック特異性ラジカル重合, 第55回高分子学会年次大会予稿集, May 2006.
307.	中村公彦, 石井里志, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ルイス塩基存在下でのN-アルキルアクリルアミドの立体特異性ラジカル重合, 第55回高分子学会年次大会予稿集, May 2006.
308.	中村司, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : トリビニルモノマーとスチレンを用いた開始剤組込み共重合による高分岐コポリマーの合成, 第55回高分子学会年次大会予稿集, May 2006.
309.	小野敦士, Tsuneyuki Sato, Makiko Seno and Tomohiro Hirano : ポリブタジエンとN-ビニルピロリドンを用いた開始剤組込み共重合による高分岐ポリマーの合成, 第55回高分子学会年次大会予稿集, May 2006.
310.	野村一樹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : アリルモノマーを用いた開始剤組み込み重合による可溶性高分岐ポリマーの合成, 第54回高分子討論会予稿集, Sep. 2005.
311.	Tomohiro Hirano, 奥村雄也, Makiko Seno and Tsuneyuki Sato : 単純なアルコールを用いたN-イソプロピルアクリルアミドのシンジオタクチック特異性ラジカル重合, 第54回高分子討論会予稿集, Sep. 2005.
312.	信種裕樹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 開始剤組み込みラジカル共重合による高分岐ポリアクリル酸エステルの合成と応用, 第54回高分子学会年次大会予稿集, May 2005.
313.	有馬由起子, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : アジピン酸ジビニルとクロロ酢酸ビニルのラジカル開始剤組込み共重合による反応性高分岐コポリマーの合成, 第54回高分子学会年次大会予稿集, May 2005.
314.	田中啓介, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 開始剤組込み共重合を用いたホスホルコリン基を有する水溶性分岐ポリマーの合成, 第54回高分子学会年次大会予稿集, May 2005.
315.	松本直樹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : N,N-ビス[2-(メントキシカルボニル)アリル]ブチルアミンの合成と重合, 第54回高分子学会年次大会予稿集, May 2005.
316.	長谷川誠, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : トリメトキシビニルシランのラジカル重合の速度論的研究, 第54回高分子学会年次大会予稿集, May 2005.
317.	河辺成人, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ベタインビニルモノマーの開始剤組込み共重合による水溶性分岐ポリマーの合成, 第54回高分子学会年次大会予稿集, May 2005.
318.	小野敦士, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ポリブタジエンを用いた開始剤組込み共重合による可溶性高分岐ポリマーの合成, 第54回高分子学会年次大会予稿集, May 2005.
319.	野村一樹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : フタル酸ジアリルの開始剤組込み重合による可溶性高分岐ポリマーの合成, 第54回高分子学会年次大会予稿集, May 2005.
320.	奥村雄也, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : アミド基を有するビニルモノマーのラジカル重合ーアルコールによる立体制御, 第54回高分子学会年次大会予稿集, May 2005.
321.	石井里志, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : かさ高いリン酸エステル存在下でのN-イソプロピルアクリルアミドのラジカル重合, 第54回高分子学会年次大会予稿集, May 2005.
322.	石津秀朗, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ピリジンN-オキシド誘導体存在下でのN-イソプロピルアクリルアミドのイソタクチックラジカル重合, 第54回高分子学会年次大会予稿集, May 2005.
323.	升田周平, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : アミノ基を有するアクリルアミド誘導体のラジカル重合ー水素結合を利用した立体制御, 第54回高分子学会年次大会予稿集, May 2005.
324.	北島裕子, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : N-イソプロピルアクリルアミドのラジカル重合ーキレート錯体形成による立体制御, 第54回高分子学会年次大会予稿集, May 2005.
325.	山田高大, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 尿素残基を有する光学活性高分岐コポリマーの合成, 第54回高分子学会年次大会予稿集, May 2005.
326.	寺尾翔治, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 2-メチルブチルメタクリレートとジビニルベンゼンの開始剤組込み共重合による可溶性高分岐ポリマーの合成, 第54回高分子学会年次大会予稿集, May 2005.
327.	中村司, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : トリビニルモノマーを用いた開始剤組込み共重合による高分岐ポリマーの合成, 第54回高分子学会年次大会予稿集, May 2005.
328.	長谷川誠, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : トリメトキシビニルシランのラジカル重合挙動, 日本化学会西日本大会2004要旨集, Oct. 2004.
329.	三木一十三, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : N-イソプロピルアクリルアミドのラジカル重合‐シンジオタクチックポリマーの合成, 日本化学会西日本大会2004要旨集, Oct. 2004.
330.	北島裕子, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 二座配位性ルイス塩基存在下でのN-イソプロピルアクリルアミドのラジカル重合, 日本化学会西日本大会2004要旨集, Oct. 2004.
331.	Tomohiro Hirano, 石井里志, 北島裕子, 三木一十三, Makiko Seno and Tsuneyuki Sato : N-イソプロピルアクリルアミドのラジカル重合ーリン酸誘導体を用いた立体制御, 第53回高分子討論会予稿集, Sep. 2004.
332.	東田直樹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ジビニルベンゼンの開始剤組込み重合による高分岐ナノポリマーの合成, 第53回高分子学会年次大会予稿集, Vol.53, No.2, May 2004.
333.	奥村雄也, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : N-ビニルアセトアミドのラジカル重合–水素結合を用いた立体制御, 第53回高分子学会年次大会予稿集, Vol.53, No.2, May 2004.
334.	下村誠, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : AIBNを用いたジフェニルエチレン存在下でのジビニルベンゼンの開始剤組込み重合による可溶性高分岐ポリマーの合成, 第53回高分子学会年次大会予稿集, Vol.53, No.2, May 2004.
335.	野村一樹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : アジピン酸ジビニルと酢酸アリルの開始剤組込み共重合による可溶性高分岐ポリマーの合成, 第53回高分子学会年次大会予稿集, Vol.53, No.2, May 2004.
336.	田中啓介, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ニトロベンゼン存在下でのジビニルベンゼンの開始剤組込み重合による可溶性高分岐ポリマーの合成と特性解析, 第53回高分子学会年次大会予稿集, Vol.53, No.2, May 2004.
337.	山田高大, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ラジカル重合による尿素残基を有する可溶性高分岐コポリマーの合成, 第53回高分子学会年次大会予稿集, Vol.53, No.2, May 2004.
338.	三木一十三, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : NIPAAmのラジカル重合-水素結合を用いた立体制御, 第53回高分子学会年次大会予稿集, Vol.53, No.2, May 2004.
339.	有馬由紀子, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 高分岐ポリマーの新規合成法-アジピン酸ジビニルを用いた開始剤組込み重合, 第53回高分子学会年次大会予稿集, Vol.53, No.2, May 2004.
340.	信種裕樹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ジビニルベンゼンとアクリル酸エチルの開始剤組み込み共重合による高分岐ポリマーの合成と性質, 第53回高分子学会年次大会予稿集, Vol.53, No.2, May 2004.
341.	石井里志, 北島裕子, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : リン酸エステル存在下でのN-イソプロピルアクリルアミドのラジカル重合, 第53回高分子学会年次大会予稿集, Vol.53, No.2, May 2004.
342.	伊原洋, 宮城崇史, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : エチレングリコールジメタクリレートの開始剤組み込み重合による高分岐ナノポリマーの合成, 第53回高分子学会年次大会予稿集, Vol.53, No.2, May 2004.
343.	川村直人, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : アクリル酸エステルのラジカル重合-水素結合を利用した立体制御の試み, 2003年日本化学会西日本大会講演予稿集, Oct. 2003.
344.	東厚介, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : イタコン酸エステルのラジカル重合-水素結合を利用した反応制御, 2003年日本化学会西日本大会講演予稿集, Oct. 2003.
345.	正木孝二, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ニトロベンゼン中でのジエン系ポリマーの主鎖および硫黄架橋部の切断反応機構, 第52回高分子討論会予稿集, Sep. 2003.
346.	大河原慎一, 正木孝二, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ブタジエンポリマーの過酸化物架橋反応, 第52回高分子討論会予稿集, Sep. 2003.
347.	宮城崇史, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 1,1-ジフェニルエチレン存在下でのエチレングリコールジメタクリレートの開始剤組込み重合による高分岐ナノポリマー粒子の合成, 第52回高分子討論会予稿集, Sep. 2003.
348.	東田直樹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ジビニルベンゼンと N-イソプロピルアクリルアミドの開始剤組込みラジカル共重合-高分岐ナノポリマー粒子の合成, 第52回高分子討論会予稿集, Sep. 2003.
349.	Tomohiro Hirano, 三木一十三, Makiko Seno and Tsuneyuki Sato : 水素結合を利用したシンジオタクチックポリ (N-イソプロピルアクリルアミド)の合成, 第52回高分子討論会予稿集, Sep. 2003.
350.	伊原洋, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : N-メチルメタクリルアミドとエチレングリコールジメタクリレートの開始剤組込み共重合による高分岐可溶性ポリマーの合成, 第49回高分子研究発表会(神戸)講演要旨集, Jul. 2003.
351.	正木孝二, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ニトロベンゼン中でのブタジエンポリマーの主鎖切断反応, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
352.	大河原慎一, 正木孝二, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 酢酸ビニルの存在下および不在下での1,2-ポリブタジエンの過酸化物架橋反応, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
353.	山田高大, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 共役性尿素残基を有するメタクリロイルモノマーのラジカル重合挙動, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
354.	河野宏哉, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : N-トリフェニルシリルメタクリルアミドの合成と重合, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
355.	王洪偉, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ベタイン構造を含むビニルモノマーのラジカル重合に及ぼす加塩効果, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
356.	東田直樹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ジビニルベンゼンとN-イソプロピルアクリルアミドの開始剤組込み共重合による可溶性高分岐ポリマーの合成, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
357.	佐藤伸行, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : グリオキシリックオキシムエーテル存在下におけるジビニルベンゼンの開始剤組込み重合;可溶性高分岐ポリマーナノ粒子の生成, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
358.	宮城崇史, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 1,1-ジフェニルエチレン存在下でのエチレングリコールジメタクリレートの開始剤組込み重合による可溶性三次元ポリマーの合成, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
359.	木下悟志, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : フェニルスルホニル酢酸ビニルの合成と重合, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
360.	東厚介, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : アセトアニリド誘導体存在下でのイタコン酸ジブチルのラジカル重合, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
361.	三木一十三, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ルイス塩基存在下でのN-イソプロピルアクリルアミドのラジカル重合, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
362.	橋本雅彦, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : エチレングリコールジメタクリレートとイタコナメートとの開始剤組込みラジカル共重合による可溶性高分岐ポリマーの合成, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
363.	有馬由紀子, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : アジピン酸ジビニルとイソブチルビニルエーテルの開始剤組込み共重合による可溶性三次元ポリマーの合成, 第52回高分子学会年次大会予稿集, Vol.52, No.2, May 2003.
364.	Tomohiro Hirano, 東厚介, Makiko Seno and Tsuneyuki Sato : イタコン酸エステルのラジカル重合-分子内連鎖移動反応と立体規則性との関係, 第51回高分子討論会予稿集, Oct. 2002.
365.	野上容利, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 水-メタノール混合溶媒中でのチタノセンジクロリドによるメタクリル酸メチルの重合. テトラフェニルホウ酸ナトリウムによる促進効果, 第51回高分子討論会予稿集, Oct. 2002.
366.	橋本雅彦, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : (RS)-および(S)-α-フェネチルアミド基を含むα-エチルβ-N-(α'-メチルベンジル)イタコナメートのラジカル重合の素反応解析, 第51回高分子討論会予稿集, Oct. 2002.
367.	佐藤伸行, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : グリオキシリックオキシムエーテル存在下におけるビニルモノマーのラジカル重合挙動, 第51回高分子討論会予稿集, Oct. 2002.
368.	Tomohiro Hirano, 古谷和寛, Makiko Seno and Tsuneyuki Sato : イタコン酸エステルのラジカル重合-ESRスペクトルと立体規則性との関係, 第82回日本化学会秋季学会年次大会講演予稿集, Sep. 2002.
369.	東厚介, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : イタコン酸ジブチルのラジカル重合-水素結合を用いた反応制御, 第48回高分子研究発表会(神戸)講演要旨集, Jul. 2002.
370.	東田直樹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : アクリルアミド誘導体の高温ラジカル重合, 第48回高分子研究発表会(神戸)講演要旨集, Jul. 2002.
371.	小杉晃一, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 金属トリフラート存在下でのイタコン酸ジブチルのラジカル重合, 第48回高分子研究発表会(神戸)講演要旨集, Jul. 2002.
372.	大河原慎一, 正木孝二, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 液状ニトリルゴムを用いた過酸化物架橋の速度論的研究, 第51回高分子学会年次大会予稿集, Vol.51, No.2, 240, May 2002.
373.	正木孝二, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ニトロベンゼン中でのニトリルゴムの脱硫反応, 第51回高分子学会年次大会予稿集, Vol.51, No.2, 239, May 2002.
374.	野上容利, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 水-メタノール混合溶媒中におけるチタノセンジクロリド-テトラフェニルホウ酸ナトリウム開始系によるメタクリル酸メチルの重合, 第51回高分子学会年次大会予稿集, Vol.51, No.2, 136, May 2002.
375.	河野宏哉, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : N-メタクリロイルカルバモイルオキシトリフェニルシランの合成と重合, 第51回高分子学会年次大会予稿集, Vol.51, No.2, 136, May 2002.
376.	佐藤伸行, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : グリオキシリックオキシムエーテル存在下でのスチレンのラジカル重合, 第51回高分子学会年次大会予稿集, Vol.51, No.2, 135, May 2002.
377.	橋本雅彦, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : Racおよび(S)-α-フェネチルアミノ基を含むα-エチルβ-N-(α'-メチルベンジル)イタコナメートのラジカル重合挙動, 第51回高分子学会年次大会予稿集, Vol.51, No.2, 134, May 2002.
378.	八木兵庫, Makiko Seno, Tomohiro Hirano and Tsuneyuki Sato : α-およびβ-シクロデキストリン存在下でのN-アルキルマレイミドの不斉ラジカル共重合, 第51回高分子学会年次大会予稿集, Vol.51, No.2, 122, May 2002.
379.	野上容利, 柴田浩史, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 水-メタノール混合溶媒中でのチタノセンジクロリドによるメタクリル酸メチルの重合に及すテトラフェニルホウ酸ナトリウムの効果, 日本化学会中国四国九州合同大会(島根)要旨集, Oct. 2001.
380.	王洪偉, 永沼宏元, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 3-(N-2-メタクリロイルオキシエチル-N,N-ジメチル)アンモナトプロパンスルホナートのラジカル重合挙動, 日本化学会中国四国九州合同大会(島根)要旨集, Oct. 2001.
381.	高橋徹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : テトラフェニルホウ酸ナトリウムを含む開始系によるビニル重合, 第50回高分子討論会予稿集, Vol.50, No.7, 1160, Sep. 2001.
382.	田渕敦司, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 1,1-ビス(アルコキシカルボニル)-2-ビニルシクロプロパンのラジカル開環重合の速度論的解析, 第50回高分子討論会予稿集, Vol.50, No.7, 1152, Sep. 2001.
383.	椋野秀和, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : チオシアナート酢酸ビニルの合成と特異なラジカル重合挙動, 第50回高分子討論会予稿集, Vol.50, No.7, 1159, Sep. 2001.
384.	八木兵庫, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : α-およびβ-シクロデキストリン存在下でのN-アルキルマレイミドのラジカル重合による光学活性ポリマーの合成, 第50回高分子討論会予稿集, Vol.50, No.7, 1151, Sep. 2001.
385.	永沼宏元, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : イタコン酸α-2-(2-(2-メトキシエトキシ)エトキシ)エチルβ-エチルのラジカル重合における溶媒効果, 第50回高分子討論会予稿集, Vol.50, No.7, 1149, Sep. 2001.
386.	Ryoko Takeyoshi, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : イタコン酸ジブチルのラジカル重合-高温における分子内連鎖移動反応の抑制-, 第50回高分子討論会予稿集, Vol.50, No.7, 1150, Sep. 2001.
387.	佐藤伸行, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ビニルモノマーのラジカル重合に及ぼすグリオキシリックオキシムエーテルの効果, 第50回高分子学会年次大会予稿集, Vol.50, No.2, 145, May 2001.
388.	橋本雅彦, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : α-エチル-β-N-(α-メチルベンジル)イタコナメートのラジカル重合挙動, 第50回高分子学会年次大会予稿集, Vol.50, No.2, 138, May 2001.
389.	椋野秀和, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : チオシアナート酢酸ビニルのラジカル重合に及ぼす溶媒および加塩効果, 第50回高分子学会年次大会予稿集, Vol.50, No.2, 146, May 2001.
390.	高橋徹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : テトラフェニルホウ酸ナトリウムを一成分とする二成分開始系によるMMAの重合, 第50回高分子学会年次大会予稿集, Vol.50, No.2, 136, May 2001.
391.	永沼宏元, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : イタコン酸α-2-(2-(2-メトキシエトキシ)エトキシ)エチルβ-エチルのラジカル重合における成長速度定数に及ぼす溶媒効果, 第50回高分子学会年次大会予稿集, Vol.50, No.2, 144, May 2001.
392.	八木兵庫, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : α-およびβ-シクロデキストリン存在下でのN-アルキルマレイミドの不斉ラジカル重合, 第50回高分子学会年次大会予稿集, Vol.50, No.2, 139, May 2001.
393.	田渕敦司, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 1,1-ビス(アルコキシカルボニル)-2-ビニルシクロプロパンのラジカル開環重合の素反応解析, 第50回高分子学会年次大会予稿集, Vol.50, No.2, 138, May 2001.
394.	Ryoko Takeyoshi, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : イタコン酸エステルのラジカル重合-高温における異種構造の生成, 第50回高分子学会年次大会予稿集, Vol.50, No.2, 137, May 2001.
395.	前田好徳, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : リビング成長ラジカルの高効率生成を伴うベンゼン中でのN-メチル-α-フルオロアクリルアミドの重合, 第49回高分子討論会予稿集, Vol.49, No.7, 1133-1134, Sep. 2000.
396.	児玉拓也, Makiko Seno, Tomohiro Hirano and Tsuneyuki Sato : α-シクロデキストリン存在下での長鎖ビニルエステルと1,2-ジ置換モノマーのラジカル不斉共重合, 第49回高分子討論会予稿集, Vol.49, No.7, 1145-1146, Sep. 2000.
397.	前田竜司, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ラジカル重合におけるモノマーおよび光開始剤としての2-(N,N-ジメチルジチオカルバモイル)エチルビニルエーテル, 第49回高分子討論会予稿集, Vol.49, No.7, 1143-1144, Sep. 2000.
398.	大木隆行, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 3-エチル-3-メタクリロイルオキシメチルオキセタンのラジカルおよびカチオン重合, 第49回高分子討論会予稿集, Vol.49, No.7, 1147-1148, Sep. 2000.
399.	Tomohiro Hirano, Ryoko Takeyoshi, Makiko Seno and Tsuneyuki Sato : ラジカル重合で得られたポリイタコン酸エステルの立体規則性, 第49回高分子討論会予稿集, Vol.49, No.7, 1537-1538, Sep. 2000.
400.	高橋徹, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : p-クロロベンゼンジアゾニウム塩/テトラフェニルホウ酸ナトリウム系によるビニル重合, 第46回高分子研究発表会(神戸)講演要旨集, Jul. 2000.
401.	八木兵庫, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : α-シクロデキストリン存在下でのN-ドデシルマレイミドの不斉ラジカル重合, 第49回高分子学会年次大会予稿集, Vol.49, No.2, 137, May 2000.
402.	椋野秀和, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : チオシアナート酢酸ビニルの合成とラジカル重合挙動, 第49回高分子学会年次大会予稿集, Vol.49, No.2, 128, May 2000.
403.	田渕敦司, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 1,1-ビス(エトキシカルボニル)-2-ビニルシクロプロパンのラジカル重合挙動の解析, 第49回高分子学会年次大会予稿集, Vol.49, No.2, 128, May 2000.
404.	前田好徳, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ベンゼン中でのN-メチル-α-フルオロアクリルアミドのラジカル重合におけるリビング成長ラジカルの生成, 第49回高分子学会年次大会予稿集, Vol.49, No.2, 125, May 2000.
405.	児玉拓也, Makiko Seno, Tomohiro Hirano and Tsuneyuki Sato : シクロデキストリンを不斉場とした1,2-ジ置換モノマーのラジカル共重合による光学活性ポリマーの合成, 第49回高分子学会年次大会予稿集, Vol.49, No.2, 138, May 2000.
406.	前田竜司, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : ラジカル重合におけるモノマー及び光開始剤としての2-(N,N-ジメチルジチオカルバモイル)エチルビニルエーテル, 第49回高分子学会年次大会予稿集, Vol.49, No.2, 129, May 2000.
407.	福井智也, Makiko Seno, Tomohiro Hirano and Tsuneyuki Sato : β-[N-(メタクリロイル)カルバモイルオキシ]エチルベンゼンのラジカル重合反応性, 第49回高分子学会年次大会予稿集, Vol.49, No.2, 125, May 2000.
408.	大木隆行, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 3-エチル-3-メタクリロイルオキシメチルオキセタンのカチオン重合, 第49回高分子学会年次大会予稿集, Vol.49, No.2, 165, May 2000.
409.	Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : イタコン酸ジブチルのラジカル重合における立体特異性の温度依存性, 第49回高分子学会年次大会予稿集, Vol.49, No.2, 133, May 2000.
410.	前田竜司, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : 2-(N,N-ジメチルチオカルバモイル)エチルビニルエーテルの合成と重合, 日本化学会中国四国九州合同大会(徳島)要旨集, Oct. 1999.
411.	小西良典, Tomohiro Hirano, Makiko Seno, Tsuneyuki Sato and 小平俊之 : 不斉場での1,2-ジ置換モノマーのラジカル共重合による光学活性ポリマーの合成, 日本化学会中国四国九州合同大会(徳島)要旨集, Oct. 1999.
412.	児玉拓也, 池住俊哉, Tomohiro Hirano, Makiko Seno and Tsuneyuki Sato : アリルアミン残基を含むジエンモノマーの不斉環化重合, 日本化学会中国四国九州合同大会(徳島)要旨集, Oct. 1999.
413.	Tomohiro Hirano, 曹景哲, 北山辰樹 and 畑田耕一 : メタクリル酸アリルのヘテロタクチックリビング重合-重合条件と立体規則性の関係, 第48回高分子学会年次大会予稿集, May 1999.
414.	北山辰樹, 神澤岳史, 山口博子 and Tomohiro Hirano : かさ高いアルミニウムルイス酸存在下でのラクトンおよびラクチドのアニオン開環重合ならびに共重合, 第48回高分子学会年次大会予稿集, May 1999.
415.	北山辰樹, 山口博子, Tomohiro Hirano and 畑田耕一 : かさ高いアルミニウムフェノキシドによるラクトン類の重合反応制御, 第47回高分子討論会予稿集, Sep. 1998.
416.	Tomohiro Hirano, 北山辰樹 and 畑田耕一 : メタクリル酸エステルのヘテロタクチック重合-オリゴマーの解析, 第47回高分子討論会予稿集, Sep. 1998.
417.	Tomohiro Hirano, 山口博子, 北山辰樹 and 畑田耕一 : メタクリル酸プロピルおよびアリルのヘテロタクチックリビング重合, 第47回高分子学会年次大会予稿集, May 1998.
418.	Janco Miroslav, Tomohiro Hirano, 北山辰樹, 畑田耕一 and Berek Dusan : Liquid Chromatography at Critical Adsorption Point as Powerful Separation Technique for Descrimination of Stereoregular Polymethacrylates, 第2回高分子分析討論会予稿集, Nov. 1997.
419.	北山辰樹, Tomohiro Hirano and 畑田耕一 : メタクリル酸エステルのヘテロタクチック重合-かさ高いアルミニウムフェノキシドのルイス酸性と重合の立体特異性の関連, 第46回高分子討論会予稿集, Oct. 1997.
420.	北山辰樹, Tomohiro Hirano and 畑田耕一 : メタクリル酸エステルのヘテロタクチックリビング重合の機構-メゾ末端アニオンとラセモ末端アニオンの構造と反応性, 第73回日本化学会秋季学会年次大会講演予稿集, Sep. 1997.
421.	北山辰樹, 山口博子, Tomohiro Hirano and 畑田耕一 : t-BuLiとかさ高いアルミニウムフェノキシドによるe-カプロラクトンのリビング開環重合, 第43回高分子研究発表会(神戸)講演要旨集, Jul. 1997.
422.	北山辰樹, Tomohiro Hirano and 畑田耕一 : メタクリル酸エステルのヘテロタクチック重合-重合の立体規制に及ぼすカルボニル化合物の添加効果, 第46回高分子学会年次大会予稿集, May 1997.
423.	北山辰樹, Tomohiro Hirano, 山口博子, 柳田高恒 and 畑田耕一 : 側鎖にフェノール基を有するメタクリル酸エステルのアルミニウム錯体の合成とその重合挙動, 第46回高分子学会年次大会予稿集, May 1997.
424.	北山辰樹, Tomohiro Hirano and 畑田耕一 : ヘテロタクチックポリメタクリル酸エステルの13C NMRによる末端構造解析と重合の立体規制, 第1回高分子分析討論会予稿集, Nov. 1996.
425.	北山辰樹, Tomohiro Hirano and 畑田耕一 : t-BuLiとかさ高いアルミニウムフェノキシドによるメタクリル酸エステルの立体特異性重合-生成ポリマーの構造解析と重合機構, 第45回高分子討論会予稿集, Oct. 1996.
426.	北山辰樹, Tomohiro Hirano, 何守鋼, Urbanek Sebastien, 薮田尚士 and 畑田耕一 : 官能基を有するメタクリル酸エステルの嵩高いアルミニウムフェノキシドを助剤とするアニオン重合-立体特異性，モノマー選択性，位置選択性の制御, 第45回高分子討論会予稿集, Oct. 1996.
427.	北山辰樹, Tomohiro Hirano and 畑田耕一 : 13C NMRによるヘテロタクチックポリメタクリル酸エステルの主鎖ならびに末端の立体規則性分布の解析, 第44回高分子討論会予稿集, Sep. 1995.
428.	北山辰樹, 何守鋼, Tomohiro Hirano and 畑田耕一 : かさ高いアルミニウムフェノキシドを用いるメタクリル酸エステルの重合の立体特異性および反応性の制御, 第44回高分子討論会予稿集, Sep. 1995.
429.	北山辰樹, Tomohiro Hirano, 柳田高恒, 何守鋼 and 畑田耕一 : t-BuLi-アルキルアルミニウムフェノキシドによるメタクリル酸エステルの重合の立体特異性に及ぼすアルミニウムフェノキシドの構造の影響, 第41回高分子研究発表会(神戸)講演予稿集, Jul. 1995.
430.	北山辰樹, Tomohiro Hirano, 何守鋼 and 畑田耕一 : ヘテロタクチックポリメタクリル酸エチルの末端近傍の立体規則性の13C NMRによる解析, 第44回高分子学会年次大会予稿集, May 1995.

Et cetera, Workshop:

1.	金川拓海, 若松生馬, 八幡莉紗, 菅沼こと, 朝倉哲郎, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 1Hおよび13C NMR スペクトルの多変量解析によるポリ乳酸の4 連子タクチシチー解析, 19-1 NMR研究会, May 2019.
2.	濵前奈未, Yasunari Kusaka, Misaki Senoo, Tomohiro Hirano and Koichi Ute : ブロック性を制御された機能性高分子のパルスNMRを用いた構造解析, 18-1 NMR研究会, May 2018.
3.	池北尚人, 石井雄大, Tomohiro Hirano, Ken Yoshida and Koichi Ute : Pure Shift NMRを用いたポリ乳酸およびポリ(N-ビニルピロリドン)の構造解析, 18-1 NMR研究会, May 2018.
4.	Hiroki Yamamoto, Misaki Senoo, Yasunari Kusaka, Tomohiro Hirano and Koichi Ute : 酢酸ビニル-ビニルアルコール共重合体の溶液NMRによる連鎖解析:高磁場NMR,DOSY,Pure Shift NMR, 18-1 NMR研究会, May 2018.
5.	Tomohiro Hirano : 海外学会に参加しませんか?, 日本分析化学会高分子分析研究懇談会第388回例会, Jul. 2017.
6.	Yudai Ishii, Yuka Nakanishi, Ikuma Takeichi, 八幡莉紗, 菅沼こと, 朝倉哲郎, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : NMRスペクトルの多変量解析によるポリ乳酸の立体規則性(4)~メソラクチドから得られた立体規則性ポリマーを用いた解析精度の向上~, 17-1 NMR研究会, May 2017.
7.	Hiroki Yamamoto, Misaki Senoo, 日下康成, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : 酢酸ビニル-ビニルアルコール共重合体のDiffusion-Ordered 2D NMR Spectroscopy(DOSY), 17-1 NMR研究会, May 2017.
8.	中西由佳, 横田大地, Tomohiro Hirano and Koichi Ute : ポリメタクリル酸の部分的エステル化で生成する共重合体の連鎖制御と連鎖解析, 15-1 NMR研究会, May 2015.
9.	長濱充宏, 大久保俊希, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : ポリメタクリル酸の部分的ベンジル化とメチル化で生成する共重合体の連鎖解析, 15-1 NMR研究会, May 2015.
10.	記本達也, 八幡莉紗, 菅沼こと, 朝倉哲郎, Miyuki Oshimura, Tomohiro Hirano and Koichi Ute : NMRスペクトルの多変量解析によるポリ乳酸の立体規則性解析(4), 15-1 NMR研究会, May 2015.
11.	許祐菁, 百瀬陽, Tomohiro Hirano, 王振乾 and Koichi Ute : ポリメタクリル酸t-ブチル部分的加水分解で得られた共重合体のモノマ-連鎖の解析, 14-1 NMR研究会, May 2014.
12.	Tomohiro Hirano, 八幡莉紗, 菅沼こと, 朝倉哲郎, Miyuki Oshimura and Koichi Ute : NMRスペクトルの多変量解析を用いたポリ乳酸の立体規則性解析(2), 13-1 NMR研究会, May 2013.
13.	船岡耕治, 浅川聖子, 直野辰哉, 坂尾竜一, Tomohiro Hirano and Koichi Ute : ルイス酸存在下のラジカル重合で得られたメタクリル酸エステル共重合体のモノマー連鎖の解析, 12-1 NMR研究会, May 2012.
14.	八幡莉紗, Tomohiro Hirano, Miyuki Oshimura, Koichi Ute, 菅沼こと and 朝倉哲郎 : NMRスペクトルの多変量解析を用いたポリ乳酸の立体規則性解析, 12-1 NMR研究会, May 2012.
15.	菅野夏基, Tomohiro Hirano, Miyuki Oshimura and Koichi Ute : MMA-TBMA共重合体から変換したPMMAのNMRスペクトルの多変量解析, 12-1 NMR研究会, May 2012.
16.	百瀬陽, 直野辰哉, Tomohiro Hirano and Koichi Ute : 13C NMRスペクトルの多変量解析によるメタクリル酸エステル三元共重合体の連鎖分布の推定, 11-2 NMR研究会, Dec. 2011.
17.	Koichi Ute and Tomohiro Hirano : アクリル系多元共重合体の一次構造解析に向けたNMR分光法の方法論, 第11回エンジニアリングフェスティバル, Sep. 2011.
18.	庵本卓矢, 梅澤奈央, Tomohiro Hirano, 百瀬陽 and Koichi Ute : ポリ(N-イソプロピルアクリルアミド)のNMRスペクトルの多変量解析による帰属, 11-1 NMR研究会, May 2011.
19.	百瀬陽, 坂尾竜一, 直野辰哉, 浅川聖子, Tomohiro Hirano and Koichi Ute : 13C NMR スペクトルの多変量解析によるアクリル系二元共重合体の立体規則性の解析, 11-1 NMR研究会, May 2011.
20.	Tomohiro Hirano : メタクリル酸エステル共重合体などの NMR スペクトルの多変量解析, 日本分析化学会高分子分析研究懇談会第357回例会, May 2011.
21.	Tomohiro Hirano : N-アルキルアクリルアミド(共)重合体水溶液の感熱応答性ー立体規則性・モノマー連鎖の観点からー, 高分子学会九州地区高分子若手研究会・冬の講演会, Nov. 2010.
22.	前田智也, 服部康佑, 百瀬陽, Tomohiro Hirano and Koichi Ute : DOSYによるアクリル系共重合体のキャラクタリゼーション - 組成の分子量依存性, 10-1 NMR研究会, May 2010.
23.	Tomohiro Hirano, 上池亮太, 百瀬陽 and Koichi Ute : 13C NMRスペクトルの多変量解析による高分岐共重合体のキャラクタリゼーション, 10-1 NMR研究会, May 2010.
24.	Tomohiro Hirano, 板東洋一, 那須翔, 百瀬陽 and Koichi Ute : 立体規則性の異なるポリ(N-アルキルアクリルアミド)の13C NMRスペクトルの多変量解析, 09-1 NMR研究会, May 2009.
25.	Tomohiro Hirano : 立体規則性ポリ(N-アルキルアクリルアミド)の合成と相転移挙動, 高分子学会北陸支部福井地区講演会, Mar. 2009.
26.	Koichi Ute and Tomohiro Hirano : 光開始ラジカル重合によるポリマーの分子構造制御, 第8回エンジニアリングフェスティバル, Sep. 2008.
27.	服部康佑, 久保川愛子, Tomohiro Hirano and Koichi Ute : MMA-HEMA共重合体の13C NMRスペクトルの多変量解析, 08-1 NMR研究会, May 2008.
28.	Tomohiro Hirano : N-イソプロピルアクリルアミドの立体特異性ラジカル重合-水素結合性錯体の構造と立体特異性との関係-, 08-1 NMR研究会, May 2008.
29.	Tomohiro Hirano : 選択的水素結合形成を利用した立体特異性ラジカル重合, 日本化学会中国・四国支部化学講演会, Dec. 2007.
30.	Tomohiro Hirano : 選択的水素結合形成を利用した立体特異性ラジカル重合に関する研究, 第53回高分子研究発表会(神戸), Jul. 2007.
31.	Tomohiro Hirano and Tsuneyuki Sato : ラジカル重合による分岐ポリマー, Kobunshi, Vol.56, No.5, 348, May 2007.
32.	Tomohiro Hirano : 水素結合で錯化したN-イソプロピルアクリルアミドの立体特異性ラジカル重合, 2004年度東工大資源研若手フォーラム, Mar. 2005.
33.	Tomohiro Hirano : 水素結合性コンプレックス形成を利用した立体特異性ラジカル重合, 中四国高分子研究会2004-新しい高分子合成法の開発を目指して, Dec. 2004.
34.	Tomohiro Hirano : 立体構造に重点を置いたアニオンおよびラジカル重合の反応制御, 徳島大学工業会会報, No.50, 4-6, Aug. 2004.
35.	Tomohiro Hirano : ビニル重合の立体制御, Kobunshi, Vol.52, No.9, 717, Sep. 2003.
36.	Tomohiro Hirano : イタコン酸エステルのラジカル重合-分子内連鎖移動反応と立体規則性, 第17回中国四国地区高分子若手研究会-新世紀における高分子科学の発展, Nov. 2002.
37.	Tomohiro Hirano : メタクリル酸エステルのへテロタクチックリビング重合, 高分子学会中国四国支部愛媛地区高分子懇話会-リビング重合による精密高分子合成の最前線-, Nov. 2000.
38.	Tomohiro Hirano : 高分子化合物のNMR測定と解析, 第4回共同研究成果報告会-機能性有機化合物の合成とNMRによる構造解析-, Jan. 2000.
39.	北山辰樹 and Tomohiro Hirano : (メタ)アクリレートの立体特異性リビング重合ならびに共重合, 第2回精密重合シンポジウム-精密重合の現状と展望講演要旨集, Nov. 1998.

Patent:

1.	西村洋平, 山崎莉紗, Koichi Ute, Miyuki Oshimura, Tomohiro Hirano and Ryo Kagitani : Vinyl alcohol-amino acid ester copolymer, PCT/JP2020/018635 (May 2020), WO2020/230711 (Nov. 2020), 7384361 (Nov. 2023).
2.	Koichi Ute, Tomohiro Hirano, Miyuki Oshimura, Yasunari Kusaka, Yohei Nishimura and Misaki Senoo : ビニルアルコールー酢酸ビニル共重合体, PCT/JP2018/042183 (Nov. 2018), WO2019/098247 (May 2019), 7226734 (Feb. 2023).
3.	Koichi Ute, Tomohiro Hirano, Miyuki Oshimura and Yasunari Kusaka : ビニルアルコールー酢酸ビニル共重合体の製造方法, PCT/JP2017/017409 (May 2017), WO2017/195735 (Nov. 2017), 6447896 (Dec. 2018).
4.	Koichi Ute, Tomohiro Hirano, Miyuki Oshimura and Kaji Ei-ichi : 新規エステル交換反応用触媒およびそれを用いたエステル化合物の製造方法, 2014-172501 (Aug. 2014), 2016-47799 (Apr. 2016), 6317212 (Apr. 2018).
5.	Tomohiro Hirano, Koichi Ute, Tsuneyuki Sato, 原口将幸, 畑中辰也 and 大土井啓祐 : イオン性高分岐ポリマー及び炭素ナノ材料分散剤, 2010-161021 (Jul. 2010), 2012-21100 (Feb. 2012), 5676170 (Jan. 2015).
6.	原口将幸, 大土井啓祐, Tomohiro Hirano, Koichi Ute and Tsuneyuki Sato : Hyperbranched polymer and composition comprising same, PCT/JP2010/061623 (Jul. 2010), WO2011/004865 (Jan. 2011), 5651111 (Nov. 2014).
7.	百瀬陽, Koichi Ute and Tomohiro Hirano : 光学活性芳香族ヒドロキシカルボン酸縮合体の製造方法及び光学活性化合物, 2010-107438 (May 2010), 2010-285420 (Dec. 2010), .
8.	百瀬陽, Koichi Ute and Tomohiro Hirano : 共重合体の定量方法, 2009-252192 (Nov. 2009), 2011-085564 (Apr. 2011), 5531563 (May 2014).
9.	Tomohiro Hirano, Koichi Ute, Tsuneyuki Sato, 原口将幸 and 大土井啓祐 : 高分岐ポリマーを用いた光パターニング組成物, 2008-186586 (Jul. 2008), 2010-24330 (Feb. 2010), 5473270 (Feb. 2014).
10.	Tsuneyuki Sato and Tomohiro Hirano : 分岐状重合体の製造方法および分岐状重合体含有分散液, 2006-218231 (Aug. 2006), 2008-038110 (Feb. 2008), .
11.	Tsuneyuki Sato, Makiko Seno, Tomohiro Hirano, 堀田絵理, 中原淳裕 and 尾下竜也 : ケイ素含有重合体の製造方法およびケイ素含有重合体, 2004-135762 (Apr. 2004), 2005-314606 (Nov. 2005), 4568017 (Aug. 2010).
12.	堀田絵理, 中原淳裕, 尾下竜也, Tsuneyuki Sato, Makiko Seno and Tomohiro Hirano : 複合体およびその製造方法, 2004-135794 (Apr. 2004), 2005-314608 (Nov. 2005), 4451204 (Feb. 2010).

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

蒸気発電装置用の新規防食剤の膜形成機構の解明 (Project/Area Number: 20K05433 )
High-temperature cationic polymerization achieved by unusual stabilization of the active species with solvate ionic liquids (Project/Area Number: 19K05585 )
Control of monomer sequences by modification of vinyl polymers (Project/Area Number: 17H03069 )
Stereospecific radical and anionic polymerization utilizing hydrogen bonding and characterization by statistical 2D NMR (Project/Area Number: 23750130 )
New developments in reaction control of radical polymerization with direct stabilization of radical species (Project/Area Number: 22655035 )
Novel polymer architecture composed of stereocontrolled temperature-responsive polymer segments (Project/Area Number: 18750102 )
イタコン酸エステルのラジカル重合における立体制御 (Project/Area Number: 13750818 )
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Professor : Hirano, Tomohiro

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Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)