Influence of surface modifying macromolecules on the surface properties of poly(ether sulfone) ultra-filtration membranes

被引：83

作者：

Kim, Yekyung ^{[1
,2
]}

Rana, Dipak ^{[1
]}

Matsuura, Takeshi ^{[1
]}

Chung, Wook-Jin ^{[2
]}

机构：

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

[2] Myongji Univ, Dept Environm Engn & Biotechnol, Yongin 449728, Gyeonggi Do, South Korea

来源：

JOURNAL OF MEMBRANE SCIENCE | 2009年 / 338卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Surface modifying macromolecules; Poly(ether sulfone); Ultrafiltration membranes; Pore-size distribution; Surface free energy; Water structure; ULTRAFILTRATION MEMBRANES; POLYMERIC MEMBRANES; POLYETHERSULFONE; ENERGY; WATER; PERFORMANCE; MORPHOLOGY; REDUCE;

D O I：

10.1016/j.memsci.2009.04.017

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The separation performances and physico-chemical characteristics of poly(ether sulfone) membranes were evaluated by blending of surface modifying macromolecules (SMMs). Hydrophobic SMMs (bSMM) and charged SMMs (cSMM) were synthesized and characterized. By addition of SMMs, glass transition temperature decreased and membrane pore size increased. The membrane became more hydrophobic by blending of bSMM, and became more hydrophilic after addition of cSMM. It was also demonstrated by the result of surface free energy study that the bSMM blended membrane showed the lowest solid-liquid (water) interaction by low Lifshitz-van der Waals interaction and Lewis acid (liquid)-base (solid) interaction. In contrast, cSMM blended membrane showed the highest Lewis acid-base interaction, which resulted in the highest interaction energy between membrane surface and liquid (water). It was also found from the result of differential scanning calorimeteric measurement that bound water was formed in the cSMM blended membrane. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：84 / 91

页数：8

共 44 条

[1] Preparation of thin-film-composite polyamide membranes for desalination using novel hydrophilic surface modifying macromolecules [J].