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2021 Fiscal Year Final Research Report

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

Research Project

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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
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
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.

Free Research Field

高分子化学

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。

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Published: 2023-01-30  

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