Poly(arylene ether)s bounded with disulfonaphthoxyl pendants by post functionalization for polymer electrolyte membrane application in fuel cells

被引：16

作者：

Hu, Zhaoxia ^{[1
]}

Lu, Yao ^{[1
]}

Zhang, Xulve ^{[1
]}

Gao, Qi ^{[1
]}

Yan, Xiaobo ^{[1
]}

Chen, Shouwen ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Environm & Biol Engn, Nanjing 210094, Jiangsu, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 17期

基金：

中国国家自然科学基金;

关键词：

Polymer electrolyte membrane; Decafluorobiphenyl; Naphthalene pendant; Side-chain type; Sulfonated poly(aryl ether); PROTON-EXCHANGE MEMBRANES; SULFONATED POLYIMIDE; BLOCK-COPOLYMERS; SIDE-CHAINS; SULFONE)S; KETONE); ACID; CONDUCTIVITY; TEMPERATURE; DURABILITY;

D O I：

10.1016/j.ijhydene.2017.03.108

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 series of side-chain type of sulfonated poly(aryl ether) copolymers containing disulfonaphthanoxyl pendants (sSPFAE) were synthesized from 9,9'-dihydroxyfluorene, 4,4'-biphenol, decafluorobiphenyl and disodium 4-hydroxy-2,7-naphthalene disulfonate (or dipotassium 7-hydroxy-1,3-naphthalene disulfonate) through two-step aromatic nucleophilic substitution. The structure was characterized by H-1 NMR and FTIR. Structure property relationships of the solution cast sSPFAE membranes, including ion exchange capacity (IECw, weight-based; IECv, volume-based), density, mechanical properties, water swelling, morphology, proton and methanol transport properties, thermal and hydrolytic stability were investigated and compared with those of perfluorinated ionomer (Nafion 112). The inclusion of high content perfluorobiphenyl segments in the sSPFAE back bone and disulfonated naphthalene in the side chain led to moderate water uptake, low swelling, excellent thermal, oxidative and hydrolytic stability. The sSPFAE membranes also exhibited good proton conductivity and low methanol permeability, enabling them good candidates for future polymer electrolyte membrane fuel cell applications. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：12064 / 12075

页数：12

共 41 条

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