| Project/Area Number |
16K14006
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Polymer chemistry
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| Research Institution | Osaka University |
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Principal Investigator |
HARADA Akira 大阪大学, 理学研究科, 特任教授(常勤) (80127282)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKASHIMA YOSHINORI 大阪大学, 大学院理学研究科, 講師 (40379277)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | シクロデキストリン / ホスト―ゲスト化学 / 分子認識 / 包接錯体形成 / 分子接着 / 超分子材料 / 自己修復 / 可逆的結合 / 自己修復性 / アクチュエータ / 高靭性 / 接着 / 伸縮 / 形状記憶 |
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| Outline of Final Research Achievements |
Functional polymeric materials constructed by non-covalent bonds have attracted considerable attention due to their beneficial stretching and self-healing properties. We chose host-guest interactions using cyclodextrins (CDs) as host molecules to realize supramolecular materials with stretching and self-healing properties. Notably, an inclusion complex of a CD and a guest molecule functions as a reversible bond in a material. Herein, we studied the relationship between the mechanical properties of the materials and host-guest interactions based on the association constants of CDs with guest molecules and molecular structures of the guest molecules. In particular, the αCDAAmMe-Dod hydrogel with a dodecyl group with a long, rod-like structure showed better rupture stress and strain (1250%). The βCDAAmMe-AdAAm hydrogel with a spherical adamantyl acrylamide (AdAAm) group showed better self-healing properties.
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