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题名: Tethering methoxy polyethylene glycols to improve the antifouling property of PSF/PAA-blended membranes
作者: Yu, Haijun1;  Cao, Yiming1;  Kang, Guodong1;  Liu, Jianhui1;  Li, Meng1
关键词: blend ;  surface modification ;  methoxy polyethylene glycol ;  antifouling ;  crosslinking
刊名: JOURNAL OF APPLIED POLYMER SCIENCE
发表日期: 2012-06-25
DOI: 10.1002/app.35611
卷: 124, 页:E123-E133
收录类别: SCI
文章类型: Article
类目[WOS]: Polymer Science
研究领域[WOS]: Polymer Science
英文摘要: Poly(acrylic acid) (PAA) was used as an additive to fabricate blended polysulfone (PSF) ultrafiltration (UF) membranes. Hexanediamine was used as a crosslinking agent to react with PAA and formed an active surface with amine group. Then, an end carboxyl group methoxy polyethylene glycol (MPEG) was grafted on the membrane surface via an amidation reaction. Water contact angle measurement indicated that the surface hydrophilicity of PSF/PAA-blended membranes and MPEG-modified membranes remarkably increased. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR/FTIR) was used to confirm the existence of PAA in the blended membranes and the change of chemical composition. Membrane surface and cross-sectional morphologies were observed by scanning electron microscope. The flux of pure water increased slightly after modification, while the rejection to bovine serum albumin had no obvious change. The improvement of antifouling property for MPEG-modified membrane was accordant with the increase of PAA content in PSF/PAA-blended membranes. Protein UF experiments revealed that membrane fouling, especially irreversible membrane fouling, was remarkably reduced due to the incorporation of MPEG. The long-term protein UF experiment demonstrated the improvement of recycling property and the reliability of modification. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
关键词[WOS]: POLYETHERSULFONE ULTRAFILTRATION MEMBRANES ;  REVERSE-OSMOSIS MEMBRANES ;  SURFACE MODIFICATION ;  SULFOBETAINE COPOLYMER ;  POLY(ETHYLENE GLYCOL)S ;  LIPASE IMMOBILIZATION ;  POLYSULFONE MEMBRANES ;  COMB COPOLYMER ;  ACRYLIC-ACID ;  UF MEMBRANES
语种: 英语
WOS记录号: WOS:000301432800016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142855
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 Lab Clean Energy DNL, Dalian 116023, Peoples R China

Recommended Citation:
Yu, Haijun,Cao, Yiming,Kang, Guodong,et al. Tethering methoxy polyethylene glycols to improve the antifouling property of PSF/PAA-blended membranes[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2012,124:E123-E133.
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