聚离子液体-液晶高分子型嵌段共聚物的自组装及离子传导性质的研究

项目名称： 聚离子液体-液晶高分子型嵌段共聚物的自组装及离子传导性质的研究

项目编号： No.51473005

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 沈志豪

作者单位： 北京大学

项目金额： 85万元

中文摘要： 本项目旨在合成一类同时含有聚离子液体和偶氮型侧链液晶高分子的嵌段共聚物，利用结构分析、热分析、显微技术等多种现代分析测试技术系统研究其本体和薄膜的自组装行为，揭示液晶相互作用、静电相互作用、微相分离之间的竞争/协同规律及对嵌段共聚物相行为的影响。同时，测定由上述嵌段共聚物制备的固态聚合物电解质样品的离子传导率，揭示此类体系中离子传导的机制，同时将离子传导性能与嵌段共聚物的自组装结构及其取向和有序度相关联，总结调控和优化样品离子传导性能的规律，从而制备高性能的固态聚合物电解质膜。做出一批在国际上具有重要影响的工作，并获得原创性的具有自主知识产权的研究成果。

中文关键词： 聚离子液体；液晶高分子；嵌段共聚物；自组装；固态聚合物电解质

英文摘要： One of the objectives of this project is to synthesize block copolymers (BCPs) containing a polymeric ionic liquid block and a liquid crystalline block. The self-assembling behaviors of the BCPs will be investigated by structural analysis, thermal analysis, microscopic techniques, and other modern analytical methods to reveal the competition and/or synergy among liquid crystalline interaction, ionic interaction, and microphase separation as well as their influences on the phase behaviors of the BCPs. The ionic conductivities of various solid polymer electrolyte samples made from these BCPs will be measured. The ionic conductivities will then be correlated with the self-assembling structures, their orientation, and their large-scale ordering. Such relationships will be useful for obtaining the ways to control and optimize the ionic conductivity of the BCP samples, leading to high-performance solid polymer electrolyte membranes. This project will lead to research works with significant impact in the international scientific community as well as creative research achievements with our own rights of intellectual property.

英文关键词： Polymeric ionic liquid;Liquid crystalline polymer;Block copolymer;Self-assembly;Solid polymer electrolyte