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Erschienen in: Colloid and Polymer Science 7/2017

31.05.2017 | Original Contribution

Improved fouling resistance of poly(vinylidene fluoride) membrane modified with poly(acryloyl morpholine)-based amphiphilic copolymer

verfasst von: Xiang Shen, Tiande Xie, Jiangang Wang, Fan Wang

Erschienen in: Colloid and Polymer Science | Ausgabe 7/2017

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Abstract

An amphiphilic copolymer of poly(methyl methacrylate)-co-poly(N-acryloylmorpholine) (PMMA-co-PACMO) was synthesized via radical copolymerization. The copolymer was directly blended with poly(vinylidene fluoride) (PVDF) to prepare flat membranes using the phase inversion technology. During membrane formation, the hydrophilic PACMO chains were preferably segregated onto membrane surface, which endowed the PVDF/PMMA-co-PACMO membranes with the enhanced hydrophilicity. The prepared PVDF/PMMA-co-PACMO membranes showed lower protein adsorption than pristine PVDF membrane, due to the elimination of interaction force between membrane and protein. With the increase of copolymer concentration in the casting solution, the macrovoids were gradually formed at the cross section of the PVDF/PMMA-co-PACMO membranes. Filtration experiments indicated that the total and irreversible membrane fouling ratios were significantly suppressed via the incorporation of PMMA-co-PACMO. The flux recovery ratio of the PVDF/PMMA-co-PACMO membrane was as high as 98.4%. These results suggested that the hydrophilic modification by blending amphiphilic copolymer PMMA-co-PACMO was a feasible approach to improve anti-fouling property of PVDF membrane.

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Metadaten
Titel
Improved fouling resistance of poly(vinylidene fluoride) membrane modified with poly(acryloyl morpholine)-based amphiphilic copolymer
verfasst von
Xiang Shen
Tiande Xie
Jiangang Wang
Fan Wang
Publikationsdatum
31.05.2017
Verlag
Springer Berlin Heidelberg
Erschienen in
Colloid and Polymer Science / Ausgabe 7/2017
Print ISSN: 0303-402X
Elektronische ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-017-4117-6

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