Synthesis and characterization of a crosslinked membrane based on sulfonated poly(aryl ether sulfone) and sulfonated polyvinyl alcohol applied in direct methanol fuel cells

被引：10

作者：

Yuan, Chengyun ^{[1
]}

Wang, Yinghan ^{[1
]}

机构：

[1] Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China

来源：

JOURNAL OF POLYMER RESEARCH | 2020年 / 27卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Sulfonated poly (arylene ether sulfone); Free radical reaction; Sulfonated polyvinyl alcohol; Methanol permeability; Direct methanol fuel cells; PROTON-EXCHANGE MEMBRANE; SIDE-CHAINS; COPOLYMERS; KETONE); NAFION(R); NITRILE)S; STAND;

D O I：

10.1007/s10965-020-02305-z

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Vinyl-terminated sulfonated poly (arylene ether sulfone) (VSPAES) and sulfonated polyvinyl alcohol containing vinyl group (VSPVA) have been prepared. The VSPVA and VSPAES were crosslinked by adding AIBN as initiator. The results of FT-IR and H-1-NMR indicated the existence of sulfonic acid groups and crosslinked structure in these crosslinked membranes. The microphase structures of the membranes are analyzed by SEM. The proton conductivities of membranes were above 10 mS cm(-1), which indicated that it basically meet the needs of fuel cells. The methanol permeability coefficients of CSPAES membrane is 2.8x10(-7) cm(2) s(-1), remarkably lower than neat SPAES (8.5x10(-7) cm(2) s(-1)) and Nafion117 (14.1x10(-7) cm(2) s(-1)). Moreover, the proton selecticity of CSPAES membrane is close to 2 times higher than that of Nafion 117 membrane. The crosslinked membrane showed better stability than the linear SPAES membrane.

引用

页数：13

共 40 条

[1]

Alami M, 2008, SYNTHESIS-STUTTGART, V07, P1049, DOI [10.1055/s-2008-1032119, DOI 10.1055/S-2008-1032119]

[2] Novel proton exchange membrane nanocomposites based on sulfonated tungsten trioxide for application in direct methanol fuel cells [J].