Low pressure reverse osmosis performances of sulfonated poly(2,6-dimethyl-1,4-phenylene oxide) thin film composite membranes: effect of coating conditions and molecular weight of polymer

被引：50

作者：

Kim, KJ

Chowdhury, G ^{[1
]}

Matsuura, T

机构：

[1] Univ Ottawa, Dept Chem Engn, Ind Membrane Res Inst, Ottawa, ON K1N 6N5, Canada

[2] Korea Res Inst Chem Technol, Div Adv Chem Technol, Taejon 305606, South Korea

来源：

JOURNAL OF MEMBRANE SCIENCE | 2000年 / 179卷 / 1-2期

关键词：

sulfonated polyphenylene oxide; low pressure reverse osmosis; thin film composite membranes; ion-exchange membranes; electrolyte separation;

D O I：

10.1016/S0376-7388(00)00481-6

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Thin film composite (TFC) membranes with sulfonated poly(2,6-dimethyl-1,4-phenylene oxide) (SPPO) as the top layer coated on ultrafiltration (UF) membranes were prepared under different preparation conditions including the polymer concentration, solvent used in the coating solution, drying temperature, and the polymer molecular weight. Membrane performances for nanofiltration that separated electrolytes such as MgSO4 and NaCl from aqueous solution were investigated using the composite membranes thus prepared. The concentration of SPPO both in H+-form and in Na+-form showed different tendencies for MgSO4 separation while it did not affect the separation of NaCl. Membrane permeation rate increased on increasing the molecular weight of the glycol ethers used as the solvent without sacrificing separation. TFC membranes prepared from high molecular weight SPPO exhibited better performances as compared to those prepared from lower molecular weight SPPO. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：43 / 52

页数：10