Side-Chain-Type Anion Exchange Membranes Based on Poly(arylene ether sulfone)s Containing High-Density Quaternary Ammonium Groups

被引：37
|
作者：
Wang, Kaiqi [1 ]
Zhang, Zhenpeng [2 ]
Li, Su [1 ]
Zhang, Haibo [1 ]
Yue, Nailin [3 ,4 ]
Pang, Jinhui [1 ]
Jiang, Zhenhua [1 ]
机构：
[1] Jilin Univ, Lab High Performance Plast, Coll Chem, Minist Educ,Natl & Local Joint Engn Lab Synth Tec, Changchun 130012, Peoples R China
[2] Shenyang Rubber Res & Design Inst Co Ltd, Shenyang 110021, Peoples R China
[3] Jilin Univ, Sch Mat Sci & Engn, Changchun 130012, Peoples R China
[4] Jilin Univ, Electron Microscopy Ctr, Changchun 130012, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2021年 / 13卷 / 20期
基金：
美国国家科学基金会;
关键词：
anion exchange membranes; fuel cells; poly(arylene ether sulfone)s; side chain; multi-cation; POLY(PHENYLENE OXIDE); ALKYL SPACERS; PERFORMANCE; STABILITY; KETONE);
D O I：
10.1021/acsami.1c00889
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
To obtain anion exchange membranes with both high ionic conductivity and good dimensional stability, a series of side-chain-type poly(arylene ether sulfone)s (PAES-QDTPM-x) were designed and synthesized. Quaternary ammonium (QA) groups were densely aggregated and grafted onto the main chain via flexible hydrophobic spacers. Well-defined microphase separation was confirmed by small-angle X-ray scattering. PAES-QDTPM-0.30 exhibited reasonably high conductivity (39.4 mS cm(-1) at 20 degrees C and 76.1 mS cm(-1) at 80 degrees C) and excellent dimensional stability at 80 degrees C (11.9% in length, 11.2% in thickness) due to the concentration of ion clusters and the side-chain-type structure. All membranes maintained over 82% of the conductivity after alkali treatment for 14 days. In the H-2/O-2 fuel cell performance test, the maximum power density of PAES-QDTPM-0.30 at 60 degrees C was 225.8 mW cm(-2).
引用
收藏
页码：23547 / 23557
页数：11
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