2021 Fiscal Year Final Research Report
Precise analysis and multidimensional control of LCST behavior of monofunctional dual stimuli-responsive polymers in organic solvents
Project/Area Number |
19K05587
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 35010:Polymer chemistry-related
|
Research Institution | Osaka 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。
|