One-pot preparation of anion exchange membranes from bromomethylated poly(2,6-dimethyl-1,4-phenylene oxide) for electrodialysis

被引：17

作者：

Wu, Liang ^{[1
]}

Zhao, Yue ^{[1
]}

Ge, Liang ^{[1
]}

Yang, Zhengjin ^{[1
]}

Jiang, Chenxiao ^{[1
]}

Xu, Tongwen ^{[1
]}

机构：

[1] Univ Sci & Technol China, CAS Key Lab Soft Matter Chem, Lab Funct Membrance, Sch Chem & Mat Sci, Hefei 230026, Peoples R China

来源：

CHEMICAL ENGINEERING SCIENCE | 2015年 / 135卷

基金：

美国国家科学基金会;

关键词：

Electrodialysis; Anion exchange membrane; One-pot preparation; Solvent-processable; FUEL-CELLS; FACILITATED TRANSPORT; HALOMETHYLATION; TEMPERATURE; SERIES; CO2;

D O I：

10.1016/j.ces.2014.09.028

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Anion exchange membranes (AEMs) are commonly prepared by the heterogeneous post-modification of chloromethylated polymer films in trimethylamine (TMA) aqueous solution for the poor solubility of quaternary ammonium-functionalized polymers. This study reports the one-pot preparation of solvent-processable quaternary ammonium-functionalized poly (2,6-dimethyl-1, 4-phenylene oxide) (QPPO) solution by piping TMA gas into polymer solution directly. Solvents mixture with a proper solubility parameter is employed to ensure the dissolving of reactants and ammonium-functionalized products. Membrane morphology and properties, including ion exchange capacity, water uptake, area resistance, tensile strength and transport number, have been characterized to determine advantages of this strategy over the post-modification method. Moreover, the optimized membrane exhibits a better electrodialysis performance than that of post-modified membrane, suggesting the benefit of this strategy. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：526 / 531

页数：6

共 21 条

[1] Permeation of n-butane, 1-butene and 1,3-butadiene through anhydrated Ag+-doped perfluorocarbon-type ion-exchange membranes [J].