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Surface modification of polyethersulfone hollow‐fiber membranes by γ‐ray irradiation
Author(s) -
Mok S.,
Worsfold D. J.,
Fouda A.,
Matsuura T.
Publication year - 1994
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1994.070510120
Subject(s) - membrane , ultrafiltration (renal) , concentration polarization , materials science , adsorption , polyethylene glycol , hollow fiber membrane , chemical engineering , surface modification , fiber , fouling , peg ratio , polymer , protein adsorption , polyethylene , polymer chemistry , chromatography , composite material , chemistry , organic chemistry , biochemistry , finance , engineering , economics
The fouling of ultrafiltration membrane is often caused by gel formation on the membrane surface. This gel layer arises due to concentration polarization or macromolecular adsorption on the membrane surface. The gel layer affects both the hydraulic permeability and the rejection properties of the membrane. In this report, the adsorption of porcine albumin and the concentration polarization effect on modified and unmodified polyethersulfone (PES) hollow‐fiber membrane is studied. PES ultrafiltration hollow‐fiber membranes were modified by the grafting of polyethylene glycol (PEG) polymer on the internal surface using γ‐ray irradiation method. The modified hollow fibers were less susceptible to fouling than were the unmodified fiber. The performance of both modified and unmodified hollow fibers was tested as a function of feed flow rates and protein concentrations. © 1994 John Wiley & Sons, Inc.