Synthesis and crosslinking of partially disulfonated poly(arylene ether sulfone) random copolymers as candidates for chlorine resistant reverse osmosis membranes

被引：113

作者：

Paul, Mou ^{[1
]}

Park, Ho Bum ^{[2
]}

Freeman, Benny D. ^{[2
]}

Roy, Abhishek ^{[1
]}

McGrath, James E. ^{[1
]}

Riffle, J. S. ^{[1
]}

机构：

[1] Virginia Polytech Inst & State Univ, Macromol & Interfaces Inst, Inst Chem Dependency, Blacksburg, VA 24061 USA

[2] Univ Texas Austin, Ctr Energy & Environm Resources, Dept Chem Engn, Austin, TX 78758 USA

来源：

POLYMER | 2008年 / 49卷 / 09期

基金：

美国国家科学基金会;

关键词：

membrane; disulfonated poly(arylene ether sulfone); reverse osmosis;

D O I：

10.1016/j.polymer.2008.02.039

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Biphenol-based, partially disulfortated poly(arylene ether sulfone)s synthesized by direct copolymerization show promise as potential reverse osmosis membranes. They have excellent chlorine resistance over a wide range of pHs and good anti-protein and anti-oily water fouling behavior. Crosslinking of these copolymers that have high degrees of disulfonation may improve salt rejection of the membranes for reverse osmosis performance. A series of controlled molecular weight, phenoxide-endcapped, 50% disuffortated poly(arylene ether sulfone)s were synthesized. The copolymers were reacted with a multifunctional epoxy resin and crosslinked thermally. The effects on network properties of various factors such as crosslinking time, copolymer molecular weight and epoxy concentration were investigated. The crosslinked membranes were characterized in terms of gel fraction, water uptake, swelling and self-diffusion coefficients of water. The salt rejection of the cured membranes was significantly higher than that for the uncrosslinked copolymer precursors. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2243 / 2252

页数：10

共 42 条

[1] CHLORINE RESISTANT POLYSULFONE REVERSE-OSMOSIS MODULES [J].