Synthesis and properties of new side-chain-type poly(arylene ether sulfone)s containing tri-imidazole cations as anion-exchange membranes

被引：46

作者：

Wang, Chenyi ^{[1
]}

Zhou, Yuanpeng ^{[1
]}

Xu, Chang ^{[1
]}

Zhao, Xiaoyan ^{[1
]}

Li, Jian ^{[1
]}

Ren, Qiang ^{[1
]}

机构：

[1] Changzhou Univ, Sch Mat Sci & Engn, Jiangsu Key Lab Environm Friendly Polymer Mat, Changzhou 213164, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 45期

关键词：

Anion-exchange membranes; Imidazole cations; Alkaline stability; Side chains; ENHANCED ALKALINE STABILITY; HYDROXIDE ION CONDUCTIVITY; COPOLYMER MEMBRANES; BLOCK-COPOLYMERS; AMMONIUM GROUPS; MOIETIES; OXIDE);

D O I：

10.1016/j.ijhydene.2018.08.182

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：

In order to enhance the properties of polymer anion-exchange membranes (ABMs), a class of side-chain-type poly (arylene ether sulfone)s containing tri-imidazole cations in pendant phenoxyphenyl spacer (i.e., Im-PES-xx) were designed and prepared by polymer grafting reaction. Based on these imidazole functionalized polymers, a series of new AEMs were successfully prepared by their solution coating and ion exchange. The obtained membranes exhibited good alkaline stability with the retention of ion-exchange capacity in the range of 78.5%-83.3% after immersion in 4 M NaOH solution at 80 degrees C for 336 h. The membranes also had high hydroxide conductivity with the values of 34.1-70.5 mS cm(-1) at 80 degrees C. Meanwhile, these membranes possessed good dimensional stability, and their swelling ratio was in the range of 2.5%-7.0% at 80 degrees C. The incorporation of the dense and local imidazole cations in the side chains for AEMs plays an important role for their properties. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：20739 / 20749

页数：11

共 51 条

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