磺化聚醚醚酮酮/氨基封端超支化聚酰亚胺复合膜的制备  

Preparation of the Blend Membranes Based on Sulfonated Polyetheretherketoneketone and Amine-terminated Hyperbranched Polyimide

作　　者：王鹏[1] 吴宪 张汉宇[1] 由凯元 刘振超[1] 刘佰军[1] 

机构地区：[1]高性能聚合物合成技术国家地方联合工程实验室 吉林大学特种工程塑料教育部重点实验室 化学学院 [2]吉林大学材料科学与工程学院,长春130012

出　　处：《高等学校化学学报》2018年第3期405-407,共3页Chemical Journal of Chinese Universities

基　　金：吉林省科技发展计划(批准号：20170101110JC)资助

摘　　要：质子交换膜燃料电池因具有能量转换效率高及对环境无污染等优点,而受到广泛关注.燃料电池的核心部件是质子交换膜,其性能对燃料电池的使用性能有直接的影响[1,2].目前具有工业化水平的是Nafion~膜,但是其价格高,运行温度低,因而人们希望研制能够替代Nafion~的非全氟磺酸型质子交换膜[3,4].研究发现,磺化聚芳醚酮等芳香型聚合物膜在实现了高质子传导率的同时,往往会牺牲其在高温和高湿度下的尺寸稳定性和力学强度[5,6].An amine-terminated hyperbranched polyimide（Am-HBPI） was introduced into a sulfonated flurenyl-containing polyetheretherketoneketone（SFPEEKK） matrix to form ＂acid-base ＂ blends for proton conductive membranes.The uniform and flexible blend membranes were obtained by a solution casting procedure with a unique phase-separation microstructure.Both TEM and SEM images clearly showed that the nanosized Am-HBPI particles were well dispersed in SFPEEKK continuous phase.In comparison with the pristine SFPEEKK membrane,the blend membranes containing Am-HBPI ＂performance-enhancing component＂exhibited improved dimensional stability and better mechanical properties.Meanwhile,their proton conductivity could be 0.12—0.16 S/cm at 100 ℃.

关 键 词：超支化聚合物 聚芳醚酮 磺化 质子交换膜 聚酰亚胺 

分 类 号：O631[理学—高分子化学]