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题名: Surface Modification of Polyamide Nanofiltration Membrane by Grafting Zwitterionic Polymers to Improve the Antifouling Property
作者: Li, Xia1, 2;  Cao, Yiming1;  Kang, Guodong1;  Yu, Haijun1;  Jie, Xingming1;  Yuan, Quan1
关键词: grafting ;  hydrophilic polymers ;  membranes
刊名: JOURNAL OF APPLIED POLYMER SCIENCE
发表日期: 2014-12-05
DOI: 10.1002/app.41144
卷: 131, 期:23
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Polymer Science
研究领域[WOS]: Polymer Science
英文摘要: A simple two-step surface modification method of polyamide nanofiltration membrane, involving the activation of amide groups by formaldehyde and the subsequent cerium [Ce (IV)]-induced graft polymerization of zwitterionic 3-(methacryloylamino) propyl-dimethyl-(3-sulfopropyl) ammonium hydroxide) (MPDSAH) monomers, was employed to improve membrane antifouling property. The membranes before and after modification were characterized by attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy, and atomic force microscopy. The changes in both surface chemical composition and morphology of membranes confirmed the successful graft polymerizations of MPDSAH onto polyamide nanofiltration membrane. The static water contact angle measurements showed that surface hydrophilicity of the modified membranes was significantly enhanced. As the MPDSAH concentration increased, the water flux of grafted membrane decreased gradually, while salt rejection increased slightly. The fouling experiments with bovine serum albumin solution demonstrated that modified membranes exhibited better resistance to protein fouling. (C) 2014 Wiley Periodicals, Inc.
关键词[WOS]: REVERSE-OSMOSIS MEMBRANES ;  TRANSFER RADICAL POLYMERIZATION ;  ULTRAFILTRATION MEMBRANE ;  PROTEIN ADSORPTION ;  ACRYLIC-ACID ;  WATER ;  RESISTANCE ;  IMPACTS
语种: 英语
WOS记录号: WOS:000342920100012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145720
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Energy Saving & Environm Dept, Dalian Natl Lib Clean Energy DNL, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Li, Xia,Cao, Yiming,Kang, Guodong,et al. Surface Modification of Polyamide Nanofiltration Membrane by Grafting Zwitterionic Polymers to Improve the Antifouling Property[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2014,131(23).
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