【作者】 张洪良； 张晶晶； 梁璐； 蒋兟； 胡朝霞； 陈守文；

【机构】 南京理工大学环境与生物工程学院；

【摘要】 以4,4,-二氟二苯砜、4,4’-联苯二酚、3,3’-二磺化-4,4’-二氟二苯砜为原料,经亲核取代共聚反应,合成了一系列磺化聚芳醚砜(SPAES)聚合物。以偶氮二异丁腈为引发剂,丙烯酰胺、N,N-亚甲基双丙烯酰胺为原料,经自由基聚合合成了交联聚丙烯酰胺(PAM),利用溶液浇铸法制备了一系列semi-IPN-PAM/SPAES质子交换膜。详细研究了该系列膜的离子交换容量、吸水率、尺寸变化率、质子电导率及水解稳定性。结果表明,复合质子交换膜具有低的吸水率、良好的尺寸稳定性、较高的质子电导率及水解稳定性,且在高温低湿度的条件下质子电导率有了较大幅度的提升。更多还原

【Abstract】 A series of sulfonated poly(arylene ether sulfone)(SPAES) copolymers were successfully synthesized from 4,4’-difluorodiphenyl sulfone,4,4’-bisphenol and3,3’-disulfonate-4,4’-difluorodiphenyl sulfone via nucleophilic substitution polymerization.Polyacrylamide(PAM) were prepared from acrylamide and N,N-methylene-bis-acrylamide using azobisisobutyronitrile as initiator through radical polymerization,and used as starting material to prepare semi-IPN-PAM/SPAES membrane during solution casting procedure simultaneously.The ion exchange capacity,water uptakes,dimensional change,proton conductivity as well as hydrolytic stability of the obtained membranes were investigated in details.The semi-IPN membranes show low water uptakes,good dimensional stability,high proton conductivity and good hydrolytic stability,and the conductivity at high temperature and low humidity are considerably improved.更多还原