文献类型：期刊文献

英文题名：Synthesis and performance study of a novel sulfonated polytriazole proton exchange membrane

作者：Tang, Junkun[1];Wan, Liqiang[1];Zhou, Yan[1];Ye, Lvyuan[1];Zhou, Xiaohui[1];Huang, Farong[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Specially Funct Polymer Mat & Related Tec, Minist Educ, Shanghai 200237, Peoples R China

年份：2017

卷号：21

期号：3

起止页码：725

外文期刊名：JOURNAL OF SOLID STATE ELECTROCHEMISTRY

收录：;EI(收录号：20164202917711);WOS:【SCI-EXPANDED(收录号:WOS:000394379600011)】；

语种：英文

外文关键词：Sulfonated polytriazole; Click chemistry; Proton exchange membrane; Fuel cells

摘要：Sulfonated polytriazole (SPTA) proton exchange membranes (PEMs) with a series of sulfonation degrees was synthesized based on click chemistry from a rigid diazide monomer, 4,4'-bis(azidomethyl)-1,1'-biphenyl (BAMB), with 2,2-bis[(4-propargyloxy)phenyl]propane (BPBPA) and 4,4'-diazido-2,2'-stilbenedisulfonic acid disodium salt (DSDA). The structure of the copolymers was characterized by nuclear magnetic resonance (NMR) and gel permeation chromatography (GPC). As a result of the introduction of rigid biphenyl structure and the ionic interaction between triazole rings and sulfonic acid groups, the SPTA membranes exhibited higher water uptake and lower swelling ratio compared to NRE211 membrane, indicating excellent dimensional stability. AC impedance revealed that the proton conductivity of SPTA membranes ranged from 2.5 to 35 mS/cm at 30 A degrees C and 13-105 mS/cm at 80 A degrees C. Besides, the membranes have high thermal and oxidative stability, good mechanical property, and low methanol permeability as well.