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高坂 泰弘  コウサカ ヤスヒロ

教員組織学術研究院(繊維学系)電話番号0268-21-5488
教育組織先鋭領域融合研究群 先鋭材料研究所FAX番号
職名准教授メールアドレスkohsaka@shinshu-u.ac.jp
住所〒386-8567 長野県上田市常田3-15-1ホームページURLhttp://fiber.shinshu-u.ac.jp/kohsaka/index.html

プロフィール

兼担研究科・学部
繊維学部 化学・材料学科 機能高分子学コース
COE・クラスタ・
研究グループ
高坂研究室
研究分野
高分子合成
キーワード:精密重合化学 , 機能性モノマー , アニオン重合 , 開環重合 , ラジカル重合 , 刺激応答材料 , 末端機能化 , 立体規則性ポリマー , クリックケミストリー
所属学会
所属学会
高分子学会
日本化学会
日本ゴム協会
日本接着学会
繊維学会
学歴
出身大学院
2011 , 東京工業大学 , 理工学研究科 , 有機・高分子物質専攻
2008 , 東京工業大学 , 理工学研究科 , 有機・高分子物質専攻

出身学校・専攻等(大学院を除く)
2006 , 東京工業大学 , 工学部 , 高分子工学科

取得学位
博士(工学) , 東京工業大学

免許・資格等
2005.7 , 危険物取扱者(甲種)
受賞学術賞
2019 , 繊維学会奨励賞
2019 , 高分子奨励賞
2018 , 日本化学会第98年次大会 優秀講演賞(学術)
2018 , Emerging Investigator 2018(世界の新進気鋭の研究者33傑) , 賞ではなく栄典
2015 , 宇部興産科学技術振興財団 第55回研究奨励賞
2009 , 第5回CERI最優秀発表論文賞
研究職歴等
研究職歴
2011-2015 , 大阪大学大学院基礎工学研究科,助教
2008-2011 , 日本学術振興会 特別研究院

留学歴
2009-2010 , マサチューセッツ工科大学

研究活動業績

研究業績(著書・
発表論文等)
書籍等出版物
「クリックケミストリー ―基礎から実用まで―」 第15章 クリック反応性基を有するアクリル系ポリマーの精密合成と反応
シーエムシー出版 2014
Author:高坂泰弘,北浦健大,北山辰樹


Polyrtaxane Networks as a topologically cross-linked polymer: Synthesis and properties in Supramolecular Polymer Chemistry
Willey-VCH 2012
Author:Yasuhito Koyama, Takayuki Arai, Yasuhiro Kohsaka, Masahiro Shioya, Toshikazu Takata


論文
Controls and Effects of Monomer Junctions and Sequences in Curable and Degradable Polyarylate Containing Acrylate Moieties
Macromol. Rapid Commun. 2021
Author:Y. Kohsaka, N. Nagai


Magnesium bromide (MgBr2) as a catalyst for living cationic polymerization and ring-expansion cationic polymerization"
Polym. Chem 2021
Author:Y. Daito, R. Kojima, N. Kusuyama, Y. Kohsaka, M. Ouchi


Synthesis of Poly(Conjugated Ester)s by Ring-Opening Polymerization of Cyclic Hemiacetal Ester Bearing Acryl Skeleton
European Polymer Journal,120:109185 2020
Author:Yasuhiro Kohsaka, Mai Yamashita, Yosuke Matsuhashi, Shuji Yamashita


End-reactive poly(tetrahydrofuran) for functionalization and graft copolymer synthesis via a conjugate substitution reaction
Polymer Journal,52:75 2020
Author:Yasuhiro Kohsaka, Naoki Nagatsuka


Divergence of polycondensation by a tandem reaction based on sequential conjugate substitutions
Polymer Chemistry,:5128 2020
Author:Keito Hagiwara, Yasuhiro Kohsaka


Degradable and curable poly(conjugated ester)s prepared by acryl- and conjugate-substitutions of the ‘smallest’ monomer
European Polymer Journal,141:110049 2020
Author:Yasuhiro Kohsaka, Koki Nagai


(FOCUS REVIEW) Conjugate substitution reaction of α-(substituted methyl)acrylates in polymer chemistry
Polymer Journal,52:1175 2020
Author:Yasuhiro Kohsaka


Degradable and curable poly(conjugated ester)s prepared by acryl- and conjugate-substitutions of the ‘smallest’ monomer
Eur. Polym. J.,141:110049 2020
Author:Y. Kohsaka, K. Nagai,


Radical Polymerization of ‘Dehydroaspirin’ with a Formation of Hemiacetal Ester Skeleton: A Hint for Recyclable Vinyl Polymers
Polymer Chemistry,10:2764 2019
Author:Akane Kazama, Yasuhiro Kohsaka


Synthesis and properties of polyethers containing 1,3-butadiene skeleton in the backbones
Chemistry Letters,48(8):894 2019
Author:Yasuhiro Kohsaka, Akira HIramatsu


α-機能化アクリル酸エステルの共役置換による高分子の合成・分解・変換
高分子,68(2):69 2019
Author:高坂泰弘


Esterification with Aromatic Acyl-1,2,4-triazole Catalyzed by Weak Base at the Rate Comparable to Acyl Chloride
CHEMISTRY LETTERS,47(1):100-102 2018
Author:Kohsaka, Yasuhiro; Homma, Kazumasa; Sugiyama, Susumu; Kimura, Yoshikazu;


Bifunctional Acyl-1,2,4-triazole: An Alternative Monomer of Dicarbonyl Chloride for Metal- and Halogen-free Polyester Synthesis
CHEMISTRY LETTERS,47(2):221-224 2018
Author:Kohsaka, Yasuhiro; Homma, Kazumasa; Mori, Ichiro; Sugiyama, Susumu; Kimura, Yoshikazu;


(INVITED) Conjugate substitution and addition of alpha-substituted acrylate: a highly efficient, facile, convenient, and versatile approach to fabricate degradable polymers by dynamic covalent chemistry
POLYMER CHEMISTRY,9(13):1610-1617 2018
Author:Kohsaka, Yasuhiro; Miyazaki, Takumi; Hagiwara, Keito;


(総説)高機能ポリマー原料としてのジカルボン酸クロリドと類縁体
マテリアルステージ,18(7):38-47 2018
Author:高坂泰弘,木村芳一


(総説)α-機能化アクリル酸エステルの精密設計による機能高分子合成
機能材料,38(9):45-53 2018
Author:高坂泰弘


(総説)アクリル酸エステル誘導体の共役置換反応を利用した機能高分子合成
日本ゴム協会誌,91(11) 2018
Author:高坂泰弘


Synthesis of isotactic poly[alpha-(hydroxymethyl)acrylate] by anionic polymerization of the protected monomer
POLYMER BULLETIN,74(5):1935-1948 2017(May)
Author:Kohsaka, Yasuhiro; Yamamoto, Kazuki; Suzawa, Kazuha; Kitayama, Tatsuki;


Synthesis and reaction of block copolymer composed of independently clickable segments via monomer-selective living copolymerization
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS,23(5):1133-1140 2017(May)
Author:Ladelta, Viko; Kohsaka, Yasuhiro; Kitayama, Tatsuki;


Polymerization of α-(Halomethyl)acrylates through Sequential Nucleophilic Attack of Dithiols using a Combination of Addition–Elimination and Click Reactions
Polym. Chem.,8:976-979 2017
Author:Yasuhiro Kohsaka, Keito Hagiwara, Keiichiro Ito


Polymerization of alpha-(halomethyl)acrylates through sequential nucleophilic attack of dithiols using a combination of addition-elimination and click reactions
POLYMER CHEMISTRY,8(6):976-979 2017
Author:Kohsaka, Yasuhiro; Hagiwara, Keito; Ito, Keiichiro;


Anionic polymerization of ethyl acrylate initiated by tetrabutylammonium azide: direct synthesis of end-clickable polyacrylate
POLYMER CHEMISTRY,8(26):3858-3861 2017
Author:Kataoka, Yuki; Kohsaka, Yasuhiro; Kitaura, Takehiro; Domae, Shogo; Ishihara, Shoya; Kitayama, Tatsuki;


Acid- or photo-cleavable polyrotaxane: Subdivision of supramolecular main-chain type polyrotaxane structure induced by acidolysis or photolysis
POLYMER,125:134-137 2017
Author:Araki, Jun; Honda, Yuta; Kohsaka, Yasuhiro;


α-Exomethylene lactone possessing acetal–ester linkage: Polymerization and postpolymerization modification for water-soluble polymer
Journal of Polymer Science Part A: Polymer Chemistry,54(7):955-961 2016
Author:Kohsaka, Y; Matsumoto, Y; Zhang, T; Matsuhashi, Y; Kitayama, T
Abstract:Spotlight Articleとして特別枠で収録


Synthesis of thermo-responsive polymer via radical (co)polymerization of N,N-dimethyl-α-(hydroxymethyl)acrylamide with N,N-diethylacrylamide
Polymers,8:374 2016
Author:Yasuhiro Kohsaka, Yoshiaki Tanimoto


(総説)α-機能化アクリル酸エステルの重合化学 —精密重合・機能創成を目指した分子設計—
高分子論文集,73(5):412-427 2016
Author:髙坂泰弘


Synthesis and post-polymerization reaction of end-clickable stereoregular polymethacrylates via termination of stereospecific living anionic polymerization
POLYMER CHEMISTRY,6(7):1078-1087 2015
Author:Kohsaka, Yasuhiro; Kurata, Takashi; Yamamoto, Kazuki; Ishihara, Shoya; Kitayama, Tatsuki;


Stereospecific Anionic Polymerization of α-(Hydroxymethyl)acrylate with Protective Group
Macromol. Symp.,350:86-98 2015
Author:Yasuhiro Kohsaka, Kazuha Suzawa, Tatsuki Kitayama


C60-Containing polymethacrylates: synthesis, properties, and potential application as n-type semiconductor for organic solar cell
Polym. Bull.,72:1265-1280 2015
Author:Viko Ladelta, Yasuhiro Kohsaka, Toshihiro Ohnishi, Michio Matsumura, Tatsuki Kitayama


Stereoregular poly(methyl methacrylate) with double-clickable omega-end: synthesis and click reaction
POLYMER CHEMISTRY,6(19):3601-3607 2015
Author:Kohsaka, Yasuhiro; Yamamoto, Kazuki; Kitayama, Tatsuki;


Termination of living anionic polymerization of butyl acrylate with α-(chloromethyl)acrylate for end-functionalization and application to the evaluation of monomer reactivity
Macromol. Chem. Phys.,216(14):1534-1539 2015
Author:Yasuhiro Kohsaka, Shoya Ishihara, Tatsuki Kitayama


α-(Aminomethyl)acrylate: Polymerization and spontaneous post-polymerization modification of β-amino acid ester for pH- / temperature-responsive material
Polym. Chem.,6:5026-5029 2015
Author:Yasuhiro Kohsaka, Yusuke Matsumoto, Tatsuki Kitayama


(総説)末端に官能基を有する立体規則性ポリメタクリル酸エステルの精密合成
高分子論文集,72(7):385-394 2015
Author:髙坂 泰弘; 北浦 健大; 北山 辰樹;
Abstract:執筆依頼
Keywords:Stereospecific Anionic Polymerization; End-Functionality; Telechelic Polymer; Functional Initiator; Functional Terminator; Click Reaction; Thiol-Ene Reaction; Azide-Alkyne Cycloaddition; Polymerization Reactivity of Monomers;


(総説)メタクリル酸メチルの精密アニオン重合 : 分子量,立体規則性,末端構造の三元同時制御
日本ゴム協会誌 = Journal of the Society of Rubber Science and Technology, Japan,88(3):80-85 2015
Author:髙坂 泰弘; 北山 辰樹;
Abstract:執筆依頼
Keywords:Living Anionic Ploymerization; Stereoregularity; End-functionalization; Stereospecific Polymerization; Tacticity; Click Chemistry;


Stimuli-degradable cross-linked polymers synthesized by radical polymerization using a size-complementary [3]rotaxane cross-linker
POLYMER JOURNAL,46(1):67-72 2014
Author:Iijima, Keisuke; Kohsaka, Yasuhiro; Koyama, Yasuhito; Nakazono, Kazuko; Uchida, Satoshi; Asai, Shigeo; Takata, Toshikazu;


Anionic Alternating Copolymerization of alpha-Arylacrylates with Methyl Methacrylate: Effect of Monomer Sequence on Fluorescence
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,52(19):2806-2814 2014
Author:Kohsaka, Yasuhiro; Yamaguchi, Eiji; Kitayama, Tatsuki;


Photodegradable cross-linked polymer derived from a vinylic rotaxane cross-linker possessing aromatic disulfide axle
PURE AND APPLIED CHEMISTRY,85(4):835-842 2013
Author:Koyama, Yasuhito; Yoshii, Takahiro; Kohsaka, Yasuhiro; Takata, Toshikazu;


End-functional stereoregular poly(methyl methacrylate) with clickable C=C bonds: facile synthesis and thiol-ene reaction
POLYMER CHEMISTRY,4(19):5043-5047 2013
Author:Kohsaka, Yasuhiro; Kurata, Takashi; Kitayama, Tatsuki;


An efficient synthetic entry to rotaxanes utilising reversible cleavage of aromatic disulphide bonds
SUPRAMOLECULAR CHEMISTRY,23(1-2):65-68 2011
Author:Yoshii, Takahiro; Kohsaka, Yasuhiro; Moriyama, Taichi; Suzuki, Takao; Koyama, Yasuhito; Takata, Toshikazu;


Size-Complementary Rotaxane Cross-Linking for the Stabilization and Degradation of a Supramolecular Network
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,50(21):4872-4875 2011
Author:Kohsaka, Yasuhiro; Nakazono, Kazuko; Koyama, Yasuhito; Asai, Shigeo; Takata, Toshikazu;


Graft Polyrotaxanes: A New Class of Graft Copolymers with Mobile Graft Chains
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,50(44):10417-10420 2011
Author:Kohsaka, Yasuhiro; Koyama, Yasuhito; Takata, Toshikazu;


Main chain-type polyrotaxane with controlled ratio of rotaxanated units
CHEMISTRY LETTERS,36(2):292-293 2007
Author:Takata, Toshikazu; Kohsaka, Yasuhiro; Konishi, Gen-ichi;


講演・口頭発表等
Synthesis and Degradation of Polymers Prepared from Vinyl Monomers Bearing Cyclic Hemiacetal Ester Moieties
The 10th International Conference of Modification, Degradation, and Stabilization of Polymers (MoDeSt2018) 2018
Presenter:Yasuhiro Kohsaka


官能基シナジーに着目したα-機能化アクリルモノマーの設計と重合
第67回高分子学会年次大会(招待講演) 2018
Presenter:高坂泰弘


Synthesis of Poly(conjugated ester)s by Polycondensation and Ring-Opening Polymerization for Chemically Degradable Biocompatible Polymers
IUPAC Macro2018 2018
Presenter:Yasuhiro Kohsaka


Atropos Polymerization: Controlled Polymerization by Programmed Termination and Application Thereof
12th IUPAC International Conference on Ionic Polymerization (IP2017) 2017
Presenter:Yasuhiro Kohsaka


Polymer Synthesis by Tandem Reaction of α-(Halomethyl)acrylate via Addition-Fragmentation and Click Reactions
The 12th International Conference on Advanced Polymers via Macromolecular Engineering (APME 2017) 2017
Presenter:Yasuhiro Kohsaka, Keito Hagiwara, Takumi Miyazaki,


Polymer Synthesis by Conjugate Substitution of α-(Halomethyl)acrylate
日本ゴム協会 第28回エラストマー討論会(英語招待講演) 2017
Presenter:Yasuhiro Kohsaka


α-置換アクリル酸エステルの反応性に着目した機能高分子の精密合成
平成29年度日本化学会 東北支部秋田地区講演会 2017
Presenter:高坂泰弘


Preparation of a ‘One-by-one Chain-Tethered’ type sliding graft copolymer
9th International Conference on Fiber and Polymer Biotechnology (IFPB2016) 2016
Presenter:Chihiro Otsubo, Yasuhiro Kohsaka, Jun Araki


Anionic Polymerization of Acrylates by Onium Salts with Aluminum Lewis Acid Activator
World Congress on Living Polymerizations and Polymers (LPP16) 2016
Presenter:Kentaro Shirota, Yusuke Kataoka, Shogo Domae, Takehiro Kitaura, Yasuhiro Kohsaka, Tatsuki Kitayama


Anionic cyclopolymerization of α-linked diacrylate
World Congress on Living Polymerizations and Polymers (LPP16) 2016
Presenter:Seungmin Choi, Nobuya Tanaka, Ren Sakamoto, Yasuhiro Kohsaka, Tatsuki Kitayama


Atropos Polymerization: Controlled Polymerization by Programmed Termination
World Congress on Living Polymerizations and Polymers (LPP16) 2016
Presenter:Yasuhiro Kohsaka, Tatsuki Kitayama


Polymerization of Protected 2-(Hydroxymethyl)acrylate and Insolubilization/Water-Solubilization by Acid-hydrolysis
Asian Conference on Adhesion 2016 (ACA2016) 2016
Presenter:Yasuhiro Kohsaka, Yusuke Matsumoto, Kazuki Yamamoto, Kazuha Suzawa, Tianyi Zhang, Yosuke Matsuhashi, Tatsuki Kitayama


One pot Synthesis of Stereoregular Graft Copolymer of Polymethacrylate One-pot synthesis of Stereoregular Graft Copolymer of Polymethacrylate via Selective Termination with Monomer-bearing Terminator via Selective Termination with Monomer-bearing Term
The 11th International Conference on Advanced Polymers via Macromolecular Engineering (APME 2014) 2015
Presenter:Shu Kano, Yasuhiro Kohsaka, Tatsuki Kitayama


Ring Opening Polymerization of β–butyrolactone by Onium Salts and Bulky Aluminum Phenoxide via O-Alkyl Scission Mechanism
The 11th International Conference on Advanced Polymers via Macromolecular Engineering (APME 2015) 2015
Presenter:Taka-aki Tanaka, Takehiro Kitaura, Yasuhiro Kohsaka, Tatsuki Kitayama


Precise synthesis of poly(methyl methacrylate): Controls of molecular weight, stereoregularity, and end-Functionality
International Conference on Smart Systems Engineering 2015 (SmaSys 2015) 2015
Presenter:Yasuhiro Kohsaka


Ethyl α-(aminomethyl)acrylate: An β-amino acid ester for pH/temperature-responsive polymers
The 11th International Conference on Advanced Polymers via Macromolecular Engineering (APME 2015) 2015
Presenter:Yasuhiro Kohsaka, Yusuke Matsumoto, Tatsuki Kitayama


Ethyl α-(aminomethyl)acrylate : An amphiphilic monomer for pH- Temperature-responsive Polymers
International symposium on Amphiphilic polymers, networks gels, and membranes (APNGM15) 2015
Presenter:Yasuhiro Kohsaka, Yusuke Matsumoto, Tatsuki Kitayama


End-clickable stereoregular poly(methyl methacrylate)s by termination of stereospecific anionic polymerization
nternational Science and Nature Congress (ISNaC) 2015 2015
Presenter:Yasuhiro Kohsaka


Atropos polymerization: Spontaneous controls of molecular weight and end-functionality via programmed termination
International Symposium on Ionic Polymerization 2015 (IP15’) 2015
Presenter:Yasuhiro Kohsaka, Shoya Ishihara, Tatsuki Kitayama


pH- / Temperature-responsive Materials Prepared from β-Amino Acid Ester Carrying Polymerizable Group
The 13 th Asian Textile Conference 2015
Presenter:Yasuhiro Kohsaka, Yusuke Matsumoto, Tatsuki Kitayama

特許等知的財産
登録済特許
2価アルコール類、ポリカーボネート樹脂、ポリエステル樹脂、それらからなる成形体、および光学素子
ポリ擬ロタキサンの製造方法、架橋体の製造方法及びポリマーの回収方法
ロタキサン、架橋剤、架橋方法、架橋ポリマー及び架橋ポリマーの分解方法
可溶性の高分子化合物及びかかる高分子化合物を用いる光電変換素子の提供
Diol, and polycarbonate resin or polyester resin , PCT/JP2010/054467, WO 2010104199 A3
共同研究等希望テーマ
新奇重合性ないし高機能性を有するビニルモノマーの開発と重合 , 高分子化学,高分子材料
機能性モノマーの精密重合による材料開発(分子量・立体規則性・末端構造の制御)
研究費
科学研究費補助金(研究代表者)
2019 - 2021 , 官能基シナジーの出現/消失を利用した高分子合成・分解・変換法の開発 , 基盤研究(B)
2016 - 2018 , 動的環構造を持つアクリル酸エステルの開環および環拡大を利用した反応性高分子の合成 , 基盤研究(C)
2014 - 2015 , 炭素-炭素結合を主鎖骨格とする立体規則性ポリβ-アミノ酸類の合成構造および機能 , 若手研究(B)
2012 - 2013 , 環状高分子の立体認識を用いる超分子形成 , 若手研究(B)

科学研究費補助金(研究分担者)
2014 - 2016 , アトロポス重合:自発的停止反応制御による精密重合 , 挑戦的萌芽研究
2014 - 2016 , アトロポス重合:自発的停止反応制御による精密重合 , 挑戦的萌芽研究

奨学寄附金
2017 , ブタジエン誘導体の付加-脱離反応を利用した機能性エラストマーの合成
2016 , ワン・ツー攻撃による新規重合法の開発および易分解性機能材料への応用
2015 , アセタール結合を有するα-エキソメチレンラクトンによる易分解性機能材料の開発
2015 , バイオマスモノマーを用いた主鎖生分解性ゴムの開発と機能化
2015 , 官能基集積型モノマーを用いた易解体性高分子材料の開発
2015 , スピロ環化重合による高性能光学ポリマーの簡易合成
2014 , 素反応をプログラム化した重合反応による機能性アクリル樹脂の精密簡易合成
2013 , 重合活性なC=C二重結合を持つβ-アミノ酸エステルのラジカル重合を用いた温度/pHに応答する高分子材料の開発

教育活動実績

授業等
2018 , 機能高分子学特別講義
2018 , 前期 , 基礎化学実験 I
2018 , 前期 , 生活の中の高分子
2018 , 前期 , 合成高分子学特論Ⅲ
2018 , 前期 , 機能高分子学実験I
2018 , 後期 , 有機化学 III

社会活動実績

社会活動等
出前講座
2011.8.1 - , プラスチックがつくる現在と未来