Side-chain-type clustered sulfonated poly(arylene ether ketone)s prepared by click chemistry

被引：22

作者：

Qi, Zhigang ^{[1
]}

Gong, Chenliang ^{[1
]}

Liang, Yu ^{[1
]}

Li, Hui ^{[1
]}

Wu, Zhongying ^{[1
]}

Feng, Wanshu ^{[1
]}

Wang, Yahui ^{[1
]}

Zhang, Shujiang ^{[1
]}

Li, Yanfeng ^{[1
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2015年 / 40卷 / 30期

基金：

中国国家自然科学基金;

关键词：

Proton electrolyte membrane; Click chemistry; Clustered; Fuel cells; PROTON-EXCHANGE MEMBRANE; METHANOL FUEL-CELLS; POLYMER ELECTROLYTE MEMBRANES; BENZYLMETHYL-CONTAINING POLY(SULFONE)S; CONDUCTING MEMBRANES; ACID GROUPS; IONOMER MEMBRANES; BLOCK-COPOLYMERS; (ETHER SULFONE)S; CROSS-LINKING;

D O I：

10.1016/j.ijhydene.2015.05.142

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 series of poly(arylene ether ketone)s containing azidomethylbenzoyl side chains were fabricated through a three-step process involving polymerization of methylated copolymers, followed by bromination and azido-functionalized with sodium azide. Click reaction was applied to introduce locally and densely populated sulfophenyl group into the aromatic copolymer backbone. Ion exchange capacity (IEC) was indirectly controlled by the contents of brominated methylene moieties as precursors for azido-functionalization. Structures of the copolymers were confirmed by FT-IR and H-1 NMR. Transmission electron microscopy (TEM) showed good phase separated morphology with ionic cluster sizes in the range of 2-20 nm. Meanwhile, the sulfonated copolymers exhibited high proton conductivity in the range between 0.082 and 0.113 S cm(-1) at 80 degrees C and 100% relative humidity (RH). The methanol permeability of these membranes was in the range between 4.07 x 10(-7) and 10.00 x 10(-7) cm(2) s(-1). Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：9267 / 9277

页数：11

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