Radiation-induced grafting of N-isopropylacrylamide onto the brominated poly(2,6-dimethyl-1,4-phenylene oxide) membranes

被引：20

作者：

Lin, Z ^{[1
]}

Xu, TW ^{[1
]}

Zhang, L ^{[1
]}

机构：

[1] Univ Sci & Technol China, Sch Chem & Mat Sci, Lab Funct Membranes, Hefei 230026, Peoples R China

来源：

RADIATION PHYSICS AND CHEMISTRY | 2006年 / 75卷 / 04期

基金：

中国国家自然科学基金;

关键词：

poly(N-isopropylacrylamide); brominated poly(2,6-dimethyl-1,4-phenylene oxide); thermo-sensitive membrane; graft polymerization; Co-60; radiation;

D O I：

10.1016/j.radphyschem.2005.10.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel thermo-sensitive switching membrane has been prepared by radiation-induced simultaneous grafting N-isopropylacrylamide (NIPAAm) onto brominated poly(2,6-dimethyl-1,4-phenylene oxide) BPPO. In order to attain a high grafting degree, the effects of dose, dose rate, concentration of NIPAAm, concentration of inhibitor Cu2+, membrane thickness and solvents were investigated. The grafting process was characterized by FTIR spectroscopy and the highest grafting degree obtained was 7.87%. The thermo-sensitive property of the grafted membrane was measured by water flux (20-48 degrees C). The results showed that the grafted membrane could respond instantly to environmental temperature changes, and there was a sharp change around the lower critical solution temperature as it is normally seen in PNIPAAm hydrogel. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：532 / 540

页数：9

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