Polypropylene Glycol: The Hydrophilic Phenomena in the Modification of Polyethersulfone Membranes

被引：16

作者：

Yi, Zhuan ^{[1
,2
]}

Zhu, Liping ^{[1
,2
]}

Xu, Youyi ^{[1
,2
]}

Pang, Jinhong ^{[1
,2
]}

Zhus, Baoku ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Dept Polymer Sci & Engn, MOE Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China

[2] Zhejiang Univ, Engn Res Ctr Membrane & Water Treatment Technol, Minist Educ, Hangzhou 310027, Zhejiang, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2011年 / 50卷 / 19期

基金：

国家高技术研究发展计划(863计划);

关键词：

POLY(VINYLIDENE FLUORIDE) MEMBRANES; SURFACE MODIFICATION; ULTRAFILTRATION MEMBRANES; GRAFT-COPOLYMERS; PROTEIN; POLYMER; POLY(N-ISOPROPYLACRYLAMIDE); FABRICATION; REDUCTION;

D O I：

10.1021/ie201238c

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this work, the polypropylene glycol (PPG) was observed showing obvious hydrophilicity improvement to polyethersulfone (PES) membranes when it was introduced. The water contact angles of the blend membranes were significantly lowered to 50 degrees when contents of PPG were 25 wt % in the as-formed membranes. The stability test presented a good durability of PPG when blend membranes suffered a 70 days water washing. Surface constitution analysis revealed that PPG concentration in the near surface was nearly two times higher than the theoretic value, indicating the surface enrichment of PPG in membranes. A pore-forming effect was also observed though the porosity increase was not obvious. The results of platelet adhesion, flux recovery, and protein adsorption indicated a nice fouling-resistance property of blend membranes. The molecular folding as well as the surface aggregation of PPG was explored as a reason for the hydrophilic improvement to blend membranes.

引用

页码：11297 / 11305

页数：9

共 41 条

[1] POLY(ETHYLENE OXIDE)-POLY(PROPYLENE OXIDE)-POLY(ETHYLENE OXIDE) BLOCK-COPOLYMER SURFACTANTS IN AQUEOUS-SOLUTIONS AND AT INTERFACES - THERMODYNAMICS, STRUCTURE, DYNAMICS, AND MODELING [J].