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Towards high-performance polysulfone membrane: The role of PSF-b-PEG copolymer additive
Chen, Xiangrong; Tang, Bingxue; Luo, Jianquan; Wan, Yinhua

Polysulfone (PSF) membranes were prepared by nonsolvent-induced phase separation (NIPS) method using PSF-b-PEG copolymer as pore formation additive. The effects of copolymer composition, hydrophilic chain length and copolymer dosage on membrane morphologies, permeability, stability and biocompatibility were systematically discussed in order to determine the role of the additive. The results suggest that the copolymer composition and dosage play an important role in pore formation. The increase of PEG content in the copolymer results in larger pore size and narrower pore size distribution. The modified membranes show average surface pore sizes in the range of 11.4-15.2 nm, which increase by 14-52% compared to that of the pristine PSF membrane. With increase of copolymer dosage, the pore size increases first and then decreases. The hydrophilic chain length has no significant influence on the pore size and size distribution. The results of pure water flux and rejection agree with the variation of pore size. With increasing the copolymer dosage, the static adsorption of protein and platelet to the membrane is suppressed and thus the antifouling ability is improved. The PSF-b-PEG copolymer outperforms the common water soluble additive (i.e. PVP) in terms of the better pore forming ability and membrane stability, implying that the PSF-b-PEG copolymer would be an alternative to PVP in membrane preparation. (C) 2017 Elsevier Inc. All rights reserved.

KeywordPolysulfone Psf-b-peg Copolymer Pore Formation Additive Membrane Preparation
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Indexed BySCI
WOS KeywordHollow-fiber Membranes ; Ultrafiltration Membranes ; Antifouling Property ; Surface Modification ; Graft-copolymers ; Phase-separation ; Fabrication ; Enhancement ; Morphology ; Inversion
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Nature Science Foundation of China(21104086) ; National High Technology Research and Development Program of China (
WOS IDWOS:000395842200040
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Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
AffiliationChinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Chen, Xiangrong,Tang, Bingxue,Luo, Jianquan,et al. Towards high-performance polysulfone membrane: The role of PSF-b-PEG copolymer additive[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2017,241:355-365.
APA Chen, Xiangrong,Tang, Bingxue,Luo, Jianquan,&Wan, Yinhua.(2017).Towards high-performance polysulfone membrane: The role of PSF-b-PEG copolymer additive.MICROPOROUS AND MESOPOROUS MATERIALS,241,355-365.
MLA Chen, Xiangrong,et al."Towards high-performance polysulfone membrane: The role of PSF-b-PEG copolymer additive".MICROPOROUS AND MESOPOROUS MATERIALS 241(2017):355-365.
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