Alkaline stable imidazolium-based ionomers containing poly(arylene ether sulfone) side chains for alkaline anion exchange membranes

被引：72
作者：
Si, Zhihong [1 ]
Sun, Zhe [1 ]
Gu, Fenglou [1 ]
Qiu, Lihua [1 ]
Yan, Feng [1 ]
机构：
[1] Soochow Univ, Jiangsu Key Lab Adv Funct Polymer Design & Applic, Dept Polymer Sci & Engn, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 12期
关键词：
FUEL-CELL APPLICATIONS; FUNCTIONALIZED POLYETHYLENE; POLYMER ELECTROLYTES; HEAD-GROUPS; HYDROXIDE; DEGRADATION; STABILITY; CONDUCTIVITY; COPOLYMERS; SALTS;
D O I：
10.1039/c3ta15178f
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：
Solvent processable anion exchange membranes (AEMs) containing imidazolium cation and poly(arylene ether sulfone) side chains were prepared via the ionization of poly(4-vinylbenzyl chloride)-graft-poly(arylene ether sulfone) copolymers, and followed by anion exchange with hydroxide ions. The ionized copolymers produced ductile, transparent membranes which possess a relatively high ionic conductivity (up to 1.6 x 10(-2) S cm(-1) at room temperature). The yielded membranes are soluble in polar aprotic solvents, such as DMSO and DMF, while insoluble in water and methanol. The synthesized AEMs show good alkaline stability in 1 M KOH at 60 degrees C for 20 days, as well as high dimensional and thermal stability. These results should pave way to the practical application of this kind of AEM in alkaline fuel cells.
引用
收藏
页码：4413 / 4421
页数：9
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