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Precise analysis and multidimensional control of LCST behavior of monofunctional dual stimuli-responsive polymers in organic solvents

Research Project

Project/Area Number 19K05587
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 35010:Polymer chemistry-related
Research InstitutionOsaka City University

Principal Investigator

Sato Eriko  大阪市立大学, 大学院工学研究科, 教授 (30422075)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords下限臨界共溶温度 / オルガノゲル / 刺激応答性ゲル / 光応答性 / 共貧溶媒 / 温度応答性ゲル / 光パターニング
Outline of Research at the Start

本課題では、水素結合などの比較的強い分子間相互作用を形成しない液体中における、一官能二重刺激応答性ポリマーの温度および光応答挙動の詳細な解析および刺激応答性の多次元制御に取り組む。複数の刺激応答性部位を含む従来の多重刺激応答性ポリマーと比較して、刺激応答部位の均一分散および高密度導入を容易に実現できる点が特徴である。非プロトン性液体中での温度応答性発現メカニズムを分子レベルで解釈することで、戦略的な刺激応答性材料の設計指針の確立を目指す。

Outline of Final Research Achievements

In order to obtain the systematic information of the LCST behavior and to reflect the knowledge to the molecular design, the dissolution and swelling behavior of LCST-type coumarin derivative polymers and corresponding gels in chloroform as an aprotic organic solvent was investigated in detail. Organogels consisting of LCST-type coumarin derivative polymers showed volume phase transition like behavior and it was succeeded to photo-pattern the areas having different LCST behavior on the gel surface. The control of cloud point (in the range of ca. 20 °C) was achieved by the addition of low molecular weight compounds, which interact with LCST-type coumarin derivative polymers.

Academic Significance and Societal Importance of the Research Achievements

温度応答性ポリマーは曇点を境に溶解性などの物性が不連続に変化するため、これらを活かした様々な機能性材料への応用が期待されている。水中で温度応答性を示すポリマーについては、系統的かつ詳細な知見が得られているが、非プロトン性有機溶媒中で温度応答性を示すポリマーについては基礎的および系統的知見が欠如している。本研究成果で得られた基礎的かつ系統的知見は、積極的な分子設計を行う上で重要であり、今後の機能性材料への展開の足掛かりとなると考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (9 results)

All 2021 2020 2019

All Journal Article (2 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Thermo- and Photoresponsive Behaviors of Dual-Stimuli-Responsive Organogels Consisting of Homopolymers of Coumarin-Containing Methacrylate2021

    • Author(s)
      Okada Seidai, Sato Eriko
    • Journal Title

      Polymers

      Volume: 13 Issue: 3 Pages: 329-329

    • DOI

      10.3390/polym13030329

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 一官能二重刺激応答性オルガノゲルの温度および光応答挙動2020

    • Author(s)
      岡田聖大,佐藤絵理子
    • Journal Title

      Colloid & Interface Communication -News Letter form DCSD-

      Volume: 45 Pages: 41-42

    • Related Report
      2020 Research-status Report
  • [Presentation] Phase Behavior of Coumarin Containing Polymers and Gels in Non-Hydrogen Bonding Organic Solvents2021

    • Author(s)
      Eriko SATO
    • Organizer
      The International Chemical Congress of Pacific Basin Societies 2021 (Pacifichem 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] クロロホルム中で下限臨界共溶温度を示すクマリン誘導体ポリマーの共貧溶媒性2020

    • Author(s)
      岡田聖大、佐藤絵理子
    • Organizer
      第70回高分子学会年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Monofunctional Dual Stimuli-Responsive Organogels: Thermo- and Photo-Responsive Behavior of Coumarin Polymer-Based Organogel2019

    • Author(s)
      Seidai Okada, Eriko Sato, Yuta Koda, Hideo Horibe
    • Organizer
      An International Conference on Colloid & Surface Science
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Cononsolvency and Thermo-Responsive Behavior of Coumarin Derivative Polymers in Non-Hydrogen Bonding Organic Solvents2019

    • Author(s)
      Seidai Okada, Eriko Sato
    • Organizer
      2nd GLowing Polymer Symposium in KANTO
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 感熱性クマリン誘導体ポリマーの混合有機溶媒中での溶解挙動2019

    • Author(s)
      岡田聖大、佐藤絵理子、甲田優太、堀邊英夫
    • Organizer
      第68回高分子年学会次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 温度応答性クマリン誘導体ポリマーおよびゲルの非水素結合性有機溶媒中での共貧溶媒性2019

    • Author(s)
      岡田聖大、佐藤絵理子、甲田優太、堀邊英夫
    • Organizer
      第68回高分子討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] クマリン誘導体ポリマーの非水素結合性有機溶媒中での共貧溶媒性と温度応答性2019

    • Author(s)
      岡田聖大、佐藤絵理子、甲田優太、堀邊英夫
    • Organizer
      日本接着学会関西支部第14回若手の会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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