| Project/Area Number |
23245046
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Polymer/Textile materials
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| Research Institution | Yokohama National University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
DOKKO Kaoru 横浜国立大学, 工学研究院, 准教授 (70438117)
KOKUBO Hisashi 横浜国立大学, 工学研究院, 特別研究教員 (80397091)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥49,400,000 (Direct Cost: ¥38,000,000、Indirect Cost: ¥11,400,000)
Fiscal Year 2013: ¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Fiscal Year 2012: ¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Fiscal Year 2011: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
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| Keywords | イオン液体 / 高分子 / ゲル / 相溶 / LCST型相分離 / UCST型相分離 / ポリイミド / ブロック共重合体 / コロイド・ナノ粒子 / コロイドガラス / 構造色 / コロイド / 微粒子 / スマートマテリアル |
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| Research Abstract |
In this study, innovative soft materials consisting of polymers and ionic liquids have been systematically explored. In order to obtain fundamental information on the soft materials, solubility and phase behavior of polymers in ionic liquids were studied and revealed the importance of van der Waals, hydrogen bonding and cation-pai interactions in addition to Coulombic interaction for the decisive factors. By using different block copolymers consisting of the segments having upper critical and/or lower critical solution temperatures, thermally induced sol-gel transition, nano-gel shuttling between water phase and ionic liquid phase, and photo-induced phase transition between unimer and micelle were realized. Furthermore, by using sulfonated polymides as matrix polymer, composite membranes with ionic liquids were fabricated and were successfully demonstrated to be useful for environmentally durable ionic actuators and non-humidified intermediate temperature fuel cells.
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