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Author

Kwon, Young-Nam
Superior Membrane-based Advanced Research & Technology (SMART) Lab
Research Interests
  • Membrane, Reverse(Forward) osmosis, Membrane distillation, Hydrate-induced ice desalination

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Preparation and Characterization of Antifouling Poly(vinylidene fluoride) Blended Membranes

Cited 2 times inthomson ciCited 4 times inthomson ci
Title
Preparation and Characterization of Antifouling Poly(vinylidene fluoride) Blended Membranes
Author
Choi, HyoungwooKwon, Young-NamJung, YongdooHong, SungpyoTak, Taemoon
Keywords
Antifouling; Antifouling property; Blended membrane; Bovine serum albumins; Dead-end filtration; Dope solution; Foulants; Hydrophobic properties; Irreversible fouling; Methyl ethers; Micro-filtration membranes; Phase-inversion method; Poly(vinylidene fluoride); Polyvinylidene fluorides; Pure water permeabilities; PVDF membrane; Sodium alginates
Issue Date
201201
Publisher
WILEY-BLACKWELL
Citation
JOURNAL OF APPLIED POLYMER SCIENCE, v.123, no.1, pp.286 - 291
Abstract
Poly(vinylidene fluoride) (PVDF) membranes have been widely used in microfiltration and ultrafiltration because of their excellent chemical resistance and thermal properties. However, PVDF membranes have exhibited severe membrane fouling because of their hydrophobic properties. In this study, we investigated the antifouling properties of PVDF blended membranes. Antifouling PVDF blended membranes were prepared with a PVDF-g-poly(ethylene glycol) methyl ether methacrylate (POEM) graft copolymer. The PVDF-g-POEM graft copolymer was synthesized by the atom transfer radical polymerization (ATRP) method. The chemical structure and properties of the synthesized PVDF-g-POEM graft copolymer were determined by NMR, Fourier transform infrared spectroscopy, and gel permeation chromatography. To investigate the antifouling properties of the membranes, we prepared microfiltration membranes by using the phase-inversion method, which uses various PVDF/PVDF-g-POEM concentrations in dope solutions. The pure water permeabilities were obtained at various pressures. The PVDF/PVDF-g-POEM blended membranes exhibited no irreversible fouling in the dead-end filtration of foulants, including bovine serum albumin, sodium alginate, and Escherichia coli broth. However, the hydrophobic PVDF membrane exhibited severe fouling in comparison with the PVDF/PVDF-g-POEM blended membranes.
URI
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DOI
http://dx.doi.org/10.1002/app.33846
ISSN
0021-8995
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