Sulfonated poly(ether ether ketone) membranes crosslinked with sulfonic acid containing benzoxazine monomer as proton exchange membranes

被引：58

作者：

Ye, Yun-Sheng ^{[1
]}

Yen, Ying-Chieh ^{[1
]}

Cheng, Chih-Chia ^{[1
]}

Chen, Wen Yi ^{[2
]}

Tsai, Li-Tuan ^{[2
]}

Chang, Feng-Chih ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Inst Appl Chem, Hsinchu 30050, Taiwan

[2] Ind Technol Res Inst, Mat & Chem Res Labs, Chutung, Taiwan

来源：

POLYMER | 2009年 / 50卷 / 14期

关键词：

Benzoxazine; Proton exchange membrane; SPEEK; POLYIMIDE MEMBRANES; WATER SORPTION; CHAIN-LENGTH; X-RAY; POLYMERIZATION; COPOLYMERS; CONDUCTION; TRANSPORT; POLYMERS; POLYBENZIMIDAZOLE;

D O I：

10.1016/j.polymer.2009.04.072

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The incorporation of benzoxazine (Ba) or sulfonic acid containing benzoxazine (SBa) as a crosslinking agent in SPEEK proton exchange membrane (PEM) can substantially improve the SPEEK membrane performance. The SPEEK-SBa membranes give higher effective selectivity than corresponding SPEEK-Ba membranes under close crosslinker loading and thus are more suitable to be used in direct methanol fuel cells. The best achieved SPEEK-SBa composition (SBa40) gives reasonable proton conductivity (0.91 x 10(-2) S cm(-1)) but significantly lower methanol permeability (6.5 x 10(-8) 52 cm(-1)). The achieved effective selectivity (Phi = SPEEK-SBa40: 14.0 x 10(4) S s cm(-3)) is substantially higher than the plain SPEEK (Phi = 7.24 x 10(4) S s cm(-3)) which has great potential for practical applications in DMFCs. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：3196 / 3203

页数：8

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