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Facile surface modification of PVDF microfiltration membrane by strong physical adsorption of amphiphilic copolymers
Author(s) -
Peng Bo,
Li Yuyan,
Zhao Zhiguo,
Chen Yongming,
Han Charles C.
Publication year - 2013
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39516
Subject(s) - membrane , adsorption , contact angle , chemical engineering , materials science , copolymer , microfiltration , methacrylate , polymer chemistry , protein adsorption , amphiphile , biofouling , methyl methacrylate , ethylene glycol , scanning electron microscope , x ray photoelectron spectroscopy , polymer , chemistry , composite material , organic chemistry , biochemistry , engineering
To endow the surface of poly(vinylidene fluoride) (PVDF) microfiltration (MF) membranes with hydrophilicity and antifouling property, physical adsorption of amphiphilic random copolymers of poly(ethylene glycol) methacrylate (PEGMA) and poly(methyl methacrylate) (PMMA) (P(PEGMA‐ r ‐MMA)) onto the PVDF membrane was performed. Scanning electron microscopy (SEM) images showed that the adsorption process had no influence on the membrane structure. Operation parameters including adsorption time, polymer concentration, and composition were explored in detail through X‐ray photoelectron spectroscopy (XPS), static water contact angle (CA), and water flux measurements. The results demonstrated that P(PEGMA ‐r‐ MMA) copolymers adsorbed successfully onto the membrane surface, and hydrophilicity of the PVDF MF membrane was greatly enhanced. The antifouling performance and adsorption stability were also characterized, respectively. It was notable that PVDF MF membranes modified by facile physical adsorption of P(PEGMA 58 ‐ r ‐MMA 33 ) even showed higher water flux and better antifouling property than the commercial hydrophilic PVDF MF membranes. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 3112–3121, 2013