Preparation and properties of cation-exchange membranes based on commercial chlorosulfonated polyethylene (CSM) for diffusion dialysis

被引：12

作者：

Chong, Farui ^{[1
]}

Wang, Congwei ^{[1
]}

Miao, Jibin ^{[1
]}

Xia, Ru ^{[1
]}

Cao, Ming ^{[1
]}

Chen, Peng ^{[1
]}

Yang, Bin ^{[1
]}

Zhou, Weibin ^{[1
]}

Qian, Jiasheng ^{[1
]}

机构：

[1] Anhui Univ, Sch Chem & Chem Engn, Anhui Prov Key Lab Environm Friendly Polymer Mat, Hefei 230601, Anhui, Peoples R China

来源：

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS | 2017年 / 78卷

基金：

中国国家自然科学基金;

关键词：

Chlorosulfonated polyethylene (CSM); Alkali recovery; Diffusion dialysis (DD); Interpenetrating network structure (IPNs); SILICA HYBRID MEMBRANES; ALKALI RECOVERY; ACID-SOLUTION; 6-DIMETHYL-1; COMPOSITES; COPOLYMER; PVA;

D O I：

10.1016/j.jtice.2017.06.043

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Cation-exchange membranes for diffusion dialysis (DD) were prepared by selecting chlorosulfonated polyethylene (CSM) and methacrylic acid (MAA) as framework and functional monomer, respectively. An interpenetrating network structure (IPN) was formed by free radical polymerization and consequent crosslinking reaction. The membranes possessed ion exchange capacities (IECs) of 1.98-3.12 mmol/g, water uptake (W-R) of 12.7-34.8%, swelling degree of 72.7-170% as well as favorable thermal stability and alkali resistance (almost zero mass loss in hot alkali solution). The membranes were applied for DD process to recover alkali from NaOH/Na2WO4 system at 25 degrees C and 65 degrees C. Results indicated that coefficients for OH- (U-OH) were in the range of 0.0015-0.018 mill and separation factors (S) were in the range of 9-33 at 25 and 65 degrees C, respectively. (C) 2017 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

引用

页码：561 / 565

页数：5

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