期刊
JOURNAL OF MEMBRANE SCIENCE
卷 345, 期 1-2, 页码 331-339出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2009.09.020
关键词
PVDF hollow fiber; Amphiphilic copolymer; Fouling resistance; Hydrogel layer
资金
- National 973 Foundation of China [2009CB623402]
- National Nature Science Foundation of China [20804034]
Amphiphilic brush-like copolymer P(MMA-r-PEGMA) was synthesized by a radical polymerization method. The copolymer was characterized by the nuclear magnetic resonance proton spectra (H-1 NMR) and gel permeation chromatography (GPC). Poly(vinylidene fluoride) (PVDF) hollow fiber membrane was then prepared by the phase inversion method using the copolymer as the macromolecular additive. The effect of P(MMA-r-PEGMA) on the phase inversion process was investigated using alight transmission experiment. The surface enrichment of amphiphilic copolymer in the PVDF hollow fiber was characterized by Fourier transform infrared attenuated total reflection spectroscopy (FTIR-ATR) and X-ray photoelectron spectroscopy (XPS). Morphological structures of both dry and wet membranes were observed by scanning electron microscopy (SEM). The hydrophilicity, water permeation flux, anti-fouling and carbon ink rejection performance of the hollow fiber were characterized respectively. All these results demonstrated that PVDF hollow fibers fabricated by the single-step method showed high permeation flux, good hydrophilicity and fouling resistance. (C) 2009 Elsevier B.V. All rights reserved.
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