Structure, water sorption, and transport properties of crosslinked N-vinyl-2-pyrrolidone/N,N′-methylenebisacrylamide films

被引：21

作者：

Wu, Yuan-Hsuan ^{[1
]}

Freeman, Benny D. ^{[1
]}

机构：

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

来源：

JOURNAL OF MEMBRANE SCIENCE | 2009年 / 344卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

N-vinyl-2-pyrrolidone (NVP); N; '-methylenebisacrylamide; (MBAA); CryoSEM; Water sorption; Fouling; POLY(ETHER SULFONE); PHASE-SEPARATION; MEMBRANES; HYDROGELS; POLYMERIZATION; PERFORMANCE; COPOLYMERS; REACTIVITY; DIFFUSION;

D O I：

10.1016/j.memsci.2009.07.050

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Crosslinked N-vinyl-2-pyrrolidone (NVP) free-standing films were prepared by UV-induced photopolymerization in the presence of water using N,N'-methylenebisacrylamide (MBAA) as the crosslinker. A series of crosslinked films were prepared at various prepolymerization water contents and NVP/MBAA ratios. The films underwent phase separation during polymerization. Cryogenic scanning electron microscope (CryoSEM) was used to characterize the morphology of the films. The influence of monomer/crosslinker ratio and prepolymerization water content on morphology and water transport was characterized. Higher water content or higher monomer content in the prepolymerization mixture led to more open structures and, in turn, higher water permeability. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：182 / 189

页数：8

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