共 2 条
磺化聚醚醚酮膜的制备及其阻醇和质子导电性能
被引：24
作者：
李磊
许莉
王宇新
机构：
[1] 天津大学化工学院化学工程研究所化学工程联合国家重点实验室
来源：
基金：
天津市自然科学基金;
关键词：
直接甲醇燃料电池;
磺化聚醚醚酮;
质子交换膜;
电导率;
甲醇透过率;
D O I：
暂无
中图分类号：
O633 [杂链聚合物];
学科分类号：
摘要：
Sulfonated polyether ether ketone (SPEEK) with variou s degree of sulfonation (DS) were synthesized by reaction of PEEK with sulfo nic acid as sulfonating agent and solvent.Their proton conductivity and methanol pe rmeability as a function of the degree of sulfonation were investigated.For 46 .71% DS,proton conductivity was 1.68×10 -2S/cm at 80℃ and 4.25×10 -2S/cm at 100℃,which is closed to or superior to that of Nafion 115 me mbrane at the same conditions.Methanol permeability of SPEEK was considerable s maller than that of Nafion 115 membrane.Because of their high conductivity and low methanol permeability,SPEEK membranes appear to be excellent candidate for use in DMFC applications.
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页码：452 / 455
页数：4
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