Preparation and characterization of anion-exchange membranes based on quaternized polysulfone and modified montmorillonite

被引：0

作者：

Yan Q. ^{[1
]}

Gong Y. ^{[1
]}

Yin X. ^{[1
]}

Zhang H. ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Wuhan Textile University, Wuhan

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2016年 / 32卷 / 04期

关键词：

Anion-exchange membrane; Ionic conductivity; Modified montmorillonite; Quaternized polysulfone;

D O I：

10.16865/j.cnki.1000-7555.2016.04.032

中图分类号：

学科分类号：

摘要：

Polyethylenimine (PEI) and poly(acrylamide-co-diallyldimethylammonium chloride) (PAADDA) were used to modify montmorillonite K10 by surface coating method. Then the modified K10 was dispersed in N, N-dimethylacetamide solution of chloromethylated polysulfone to prepare composited membranes. At last, the composited anion-exchange membranes (AEM) were obtained by quaternization-alkalization method. FT-IR, XRD and thermogravimetric analysis were employed to investigate modified K10 and composited AEMs. Furthermore, some important properties of AEMs were investigated, including water uptake, thermal stability mechanical property and ion conductivity. The results show that the surface coating of K10 nano-sheets is successful. Compared with the quaternized polysulfone membrane, all the composited AEMs display reduced water uptake, increased ultimate stress, enhanced decomposition temperature of quaternary ammonium groups. The composited AEM containing 5% K10 nano-sheets coated by PAADDA exhibits the highest ionic conductivity, which is in excess of 3.0×10-2 S/cm at 60 ℃. © 2016, Chengdu University of Science and Technology. All right reserved.

引用

页码：168 / 172and178

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