Polysulfone‐based amphiphilic copolymers: Effect of hydrophilic content on morphology and performance of ultrafiltration membranes

ABSTRACT A series of polysulfone (PSf)‐based amphiphilic graft copolymers were synthesized to investigate the effects of copolymer composition on membrane morphology and performance. PSf‐based ultrafiltration membranes were prepared by phase inversion method using the blends of PSf and PSf‐g‐poly(et...

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Bibliographic Details
Published in:Journal of applied polymer science 2020-01, Vol.137 (4), p.n/a
Main Authors: Aktas Eken, Gozde, Acar, Metin H.
Format: Article
Language:English
Subjects:
antifouling
ATRP
Chemical industry
Composition effects
Contact angle
Copolymers
Graft copolymers
Hydrophilicity
Materials science
membrane
Membranes
Miscibility
Morphology
Phase inversion
Phase shift
Polyethylene glycol
Polymers
polysulfone
Polysulfone resins
surface modification
Ultrafiltration
Wettability
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Summary:ABSTRACT A series of polysulfone (PSf)‐based amphiphilic graft copolymers were synthesized to investigate the effects of copolymer composition on membrane morphology and performance. PSf‐based ultrafiltration membranes were prepared by phase inversion method using the blends of PSf and PSf‐g‐poly(ethylene glycol) methyl ether methacrylate (PEGMA) copolymers. Membranes were evaluated in terms of pure water permeability, flux recovery ratio (FRR), protein rejection, and contact angle. The morphology of the membranes was investigated by scanning electron microscopy. Contact angle of membranes was decreased from 85.7° to 51.6°, while the FRR was greatly increased from 55 to 95% upon increasing the PEGMA content of copolymers from 20 to 70 wt %. Results indicated that the ratio of hydrophilic/hydrophobic segments in amphiphilic structures is one the key parameters that control the phase inversion process by altering miscibility, viscosity, and wettability of casting solutions. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48306.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.48306