Amphiphilic graft copolymers based on ultrahigh molecular weight poly(styrene-alt-maleic anhydride) with poly(ethylene glycol) side chains for surface modification of polyethersulfone membranes

被引：90

作者：

Zhu, Li-Ping ^{[1
]}

Yi, Zhuan ^{[1
]}

Liu, Fu ^{[1
]}

Wei, Xiu-Zhen ^{[1
]}

Zhu, Bao-Ku ^{[1
]}

Xu, You-Yi ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Polymer Sci, Hangzhou 310027, Yuquan, Peoples R China

来源：

EUROPEAN POLYMER JOURNAL | 2008年 / 44卷 / 06期

关键词：

polyethersulfone; membranes; amphiphilic graft copolymers; poly(styrene-alt-maleic anhydride); surface modification;

D O I：

10.1016/j.eurpolymj.2008.03.015

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Amphiphilic graft copolymers having ultrahigh molecular weight poly(styrene-alt-maleic anhydride) (SMA) backbones and methoxyl poly(ethylene glycol) (MPEG) grafts were synthesized via the esterification between anhydride groups with hydroxyl groups. The synthesized graft copolymers, SMA-g-MPEGs, were used as additives in the preparation of polyethersulfone (PES) membranes via phase inversion process. X-ray photoelectron spectroscopy (XPS) analysis showed the comb-like graft copolymers spontaneously segregated to membrane surface during membrane formation. Water contact angle measurements and water absorbance experiments indicated the PES/SMA-g-MPEG blend membranes were much more hydrophilic than pure PES membrane. The blend membranes had stronger protein adsorption resistance than pure PES membrane did. After washed using de-ionized water for 25 days, the blend membranes exhibited higher hydrophilicity and stronger protein adsorption resistance. This phenomenon was attributed to the further accumulation of SMA-g-MPEG additives on membrane surface in aqueous conditions. SMA-g-MPEGs can be well preserved in membrane near-surface and not lost during membrane washing due to their high molecular weight and comb-like architecture. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1907 / 1914

页数：8

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