Study on the preparation and properties of sulfonated polyether ether ketone membranes

被引：0

作者：

Li, L ^{[1
]}

Xu, L ^{[1
]}

Wang, YX ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Chem Engn Res Ctr, State Key Lab Chem Engn, Tianjin 300072, Peoples R China

来源：

ACTA POLYMERICA SINICA | 2003年 / 03期

关键词：

direct methanol fuel cell; sulfonated polyether ether ketone; proton exchange membranes; proton conductivity; methanol permeability;

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Sulfortated polyether ether ketone (SPEEK) with various degree of sulfonation (DS) were synthesized by reaction of PEEK with sulfonic acid as sulfonating agent and solvent. Their proton conductivity and methanol permeability as a function of the degree of sulfortation were investigated. For 46.71% DS, proton conductivity was 1.68 X 10(-2) S/cm at 80degreesC and 4.25 x 10(-2) S/cm at 100degreesC, which is closed to or superior to that of Nafion(R) 115 membrane at the same conditions. Methanol permeability of SPEEK was considerable smaller than that of Nafion(R) 115 membrane. Because of their high conductivity and low methanol permeability, SPEEK membranes appear to be excellent candidate for use in DMFC applications.

引用

页码：452 / 455

页数：4

共 14 条

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