A cross-linked fluorinated poly (aryl ether oxadiazole) s using a thermal cross-linking for anion exchange membranes

被引：33

作者：

Li, Cunpu ^{[1
]}

Wang, Shubo ^{[1
]}

Wang, Wenpin ^{[1
,2
]}

Xie, Xiaofeng ^{[1
]}

Lv, Yafei ^{[2
]}

Deng, Changsheng ^{[1
]}

机构：

[1] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China

[2] Beijing Univ Chem Technol, Coll Mat Sci & Engn, Beijing 100029, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2013年 / 38卷 / 25期

关键词：

Anion exchange membranes (AEMs); Alkaline electrolyte membrane fuel cells (AEMFCs); Fluorinated poly (aryl ether oxadiazole); Thermal cross-linking; Double bond;

D O I：

10.1016/j.ijhydene.2013.03.172

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel cross-linked fluorinated poly (aryl ether oxadiazole) s having diallyl methylimidazole groups (FPAEO-DA-x) membranes were prepared via copolymerization, bromination, solution casting and hydroxide exchanging using a thermal cross-linking method. The membrane materials synthesized via copolymerization of 2,5-bis(2,3,4,5,6-pentafluorophenyl)-1,3,4-oxadiazole (FPOx) and diallyl bisphenol A (DABPA), bromination of the allyl and imidazolidation with N-methylimidazole (NMI). The anion exchange membranes (FPAEO-DA-x) were obtained by solution casting method, followed by hydroxide exchanging in sodium hydroxide solution and cross-linked by using the thermal cross-linking method. The chemical structures and properties of the cross-linked FPAEO-DA-x membranes (CFPAEO-DA-x) were studied. The highest ionic conductivity of the CFPAEO-DA-x membrane was achieved at 1.94 x 10(-2) S cm(-1) at 20 degrees C. Its swelling ratio and TGA properties revealed their good mechanical and thermal stability. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：11038 / 11044

页数：7

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