Plasma-induced immobilization of poly(ethylene glycol) onto poly(vinylidene fluoride) microporous membrane

被引:235
作者
Wang, P
Tan, KL
Kang, ET
Neoh, KG
机构
[1] Natl Univ Singapore, Dept Chem Engn, Singapore 119260, Singapore
[2] Natl Univ Singapore, Dept Phys, Singapore 119260, Singapore
关键词
poly(vinylidene fluoride); poly(ethylene glycol); plasma grafting; membrane; protein fouling;
D O I
10.1016/S0376-7388(01)00548-8
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Poly(vinylidene fluoride) (PVDF) microporous membranes with surface-immobilized poly ethylene glycol) (PEG) were prepared by the argon plasma-induced grafting of PEG. The PEG was pre-coated on the membrane surface, including the pore surfaces, by dipping the membrane in a PEG/CHCl3 solution prior to the argon plasma exposure. The microstructure and composition of the PEG-grafted PVDF (PEG-g-PVDF) membranes were characterized by attenuated total reflectance (ATR) FT-IR, X-ray photoelectron spectroscopy (XPS), and thermogravimetric (TG) analysis. A moderate radio-frequency (RF) plasma power and plasma treatment time led to a high concentration of the grafted PEG polymer. The morphology of the modified membranes was studied by scanning electronic microscope (SEM). The pore size and water flux of the modified membranes were also characterized. The flux decreased with increasing surface concentration of the grafted PEG polymer, while the pore size remained almost unchanged. Protein adsorption experiments revealed that the PEG-g-PVDF membranes with a PEG graft concentration, defined as the [CO]/[CF2] ratio above 3.2 exhibited good anti-fouling property. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:103 / 114
页数:12
相关论文
共 25 条
[1]  
Beamson G., 1992, HIGH RESOLUTION XPS, P228
[2]   POLYETHYLENE SURFACE-CHEMISTRY [J].
BERGBREITER, DE .
PROGRESS IN POLYMER SCIENCE, 1994, 19 (03) :529-560
[3]  
*COULT EL LIM, REF MAN COULT PRO
[4]   PROTEIN ADSORPTION TO POLY(ETHYLENE OXIDE) SURFACES [J].
GOMBOTZ, WR ;
GUANGHUI, W ;
HORBETT, TA ;
HOFFMAN, AS .
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH, 1991, 25 (12) :1547-1562
[6]   PREPARATION AND PROPERTIES OF NOVEL ENVIRONMENT-SENSITIVE MEMBRANES PREPARED BY GRAFT-POLYMERIZATION ONTO A POROUS MEMBRANE [J].
IWATA, H ;
MATSUDA, T .
JOURNAL OF MEMBRANE SCIENCE, 1988, 38 (02) :185-199
[7]   PREPARATION OF TEMPERATURE-SENSITIVE MEMBRANES BY GRAFT-POLYMERIZATION ONTO A POROUS MEMBRANE [J].
IWATA, H ;
OODATE, M ;
UYAMA, Y ;
AMEMIYA, H ;
IKADA, Y .
JOURNAL OF MEMBRANE SCIENCE, 1991, 55 (1-2) :119-130
[8]   WATER-STRUCTURE AND CHANGES IN THERMAL-STABILITY OF THE SYSTEM POLY(ETHYLENE OXIDE)-WATER [J].
KJELLANDER, R ;
FLORIN, E .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1981, 77 :2053-+
[9]   BLOOD COMPATIBILITY OF POLYETHYLENE OXIDE SURFACES [J].
LEE, JH ;
LEE, HB ;
ANDRADE, JD .
PROGRESS IN POLYMER SCIENCE, 1995, 20 (06) :1043-1079
[10]  
Lee JH, 1997, J BIOMED MATER RES, V34, P105, DOI 10.1002/(SICI)1097-4636(199701)34:1<105::AID-JBM14>3.0.CO