Development of Soft Material Using Ionic Liquids

在这项研究中，创新的软材料组成的聚合物和离子液体进行了系统的探索。为了获得软材料的基本信息，研究了聚合物在离子液体中的溶解性和相行为，并揭示了除了库仑相互作用之外，货车范德华力、氢键和阳离子-pai相互作用对于决定性因素的重要性。通过使用不同的由具有上临界和/或下临界溶解温度的链段组成的嵌段共聚物，实现了热诱导溶胶-凝胶转变、纳米凝胶在水相和离子液体相之间的穿梭以及单聚体和胶束之间的光诱导相转变。此外，通过使用磺化聚酰亚胺作为基体聚合物，与离子液体的复合膜的制造，并成功地证明是有用的环境耐用的离子致动器和非增湿的中温燃料电池。

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.