嵌段共聚物的微相分离及其质子交换膜性能  

Microphase Separation and Proton Exchange Membranes' Performance of Block Copolymers

作　　者：潘龙[1] 陈芳[1] 马晓燕[1] 侯宪冰[1] 

机构地区：[1]西北工业大学理学院应用化学系,西安710129

出　　处：《高分子通报》2013年第2期23-31,共9页Polymer Bulletin

基　　金：国家自然科学基金(青年科学基金)(No.51103117);西北工业大学基础研究基金(No.JC201125);2012年西北工业大学本科毕业设计(论文)重点扶持项目

摘　　要：嵌段共聚物由于自身嵌段之间的热力学不相容性,容易发生微相分离而形成质子传导通道,并且采用可控活性聚合的方法可设计合成具有特定拓扑结构嵌段共聚物,使之成为最具潜力的一类质子交换膜材料。本文从用于质子交换膜的嵌段共聚物的微相分离热力学理论出发,分析了影响嵌段共聚物微相分离的各类因素,其中包括磺化度、共聚物拓扑结构、嵌段长度、嵌段序列分布、微观聚集结构以及表面形貌等,并对该领域未来的发展做了展望。Block copolymer is becoming one of the most promising candidates for proton exchange membranes applications owing to two distinguish advantages. Microphase separation of block copolymers easily occur to form proton conductivity channel due to thermodynamic incompatibility between their own blocks, and an abundant topologies of block copolymers could be synthesized through controlled living polymerization.＂ This review briefly introduce the microphase separation thermodynamics theories of block copolymers, and analyze the various factors influencing the microphase separation of block copolymers, including sulfonation degree, copolymers topologies, block length, block sequence distribution, micro-aggregated structure and the surface morphology. Finally, the future research tendency in these fields is also prospected.

关 键 词：嵌段共聚物 微相分离 质子交换膜 质子传导 

分 类 号：O631.3[理学—高分子化学]