Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.memsci.2010.06.037
DC FieldValue
dc.titleHighly hydrophilic and low-protein-fouling polypropylene membrane prepared by surface modification with sulfobetaine-based zwitterionic polymer through a combined surface polymerization method
dc.contributor.authorZhao, Y.-H.
dc.contributor.authorWee, K.-H.
dc.contributor.authorBai, R.
dc.date.accessioned2014-10-08T08:32:30Z
dc.date.available2014-10-08T08:32:30Z
dc.date.issued2010-10
dc.identifier.citationZhao, Y.-H., Wee, K.-H., Bai, R. (2010-10). Highly hydrophilic and low-protein-fouling polypropylene membrane prepared by surface modification with sulfobetaine-based zwitterionic polymer through a combined surface polymerization method. Journal of Membrane Science 362 (1-2) : 326-333. ScholarBank@NUS Repository. https://doi.org/10.1016/j.memsci.2010.06.037
dc.identifier.issn03767388
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/87521
dc.description.abstractPoly(sulfobetaine methacrylate) [poly(SBMA)], a zwitterionic polymer, was successfully tethered in high density onto polypropylene (PP) membrane surface through a combined method consisting of UV-induced surface graft polymerization followed by surface-initiated atom transfer radical polymerization (ATRP). 2-Hydroxyethyl methacrylate (HEMA) was first immobilized onto PP membrane surface by UV-induced graft polymerization, and then each of the grafted poly(HEMA) chains, after coupled with 2-bromopropionyl groups, provided multiple initiation sites for subsequent ATRP of SBMA. Images from scanning electron microscope (SEM) showed that the membrane surface was fully covered with small dot-like surface structures of poly(SBMA) after 6. h of ATRP. Both attenuated total reflectance Fourier transform infrared spectroscopy (FTIR/ATR) and X-ray photoelectron spectroscopy (XPS) confirmed the grafted poly(HEMA) and poly(SBMA) on the membrane surface. Water contact angle measurements showed that the surface hydrophilicity of the PP membrane was improved significantly with the increase of the grafted poly(SBMA) content, and a water contact angle of as low as 17.4° was obtained in this study. Experimental results for protein solution filtration demonstrated that the extent of fouling was significantly reduced and most of the fouling on the modified PP membrane surface was reversible, suggesting good anti-protein-fouling performance. © 2010 Elsevier B.V.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.memsci.2010.06.037
dc.sourceScopus
dc.subjectCombined polymerization
dc.subjectHigh hydrophilicity
dc.subjectLow-protein-fouling
dc.subjectPolypropylene membrane
dc.subjectSurface modification
dc.subjectZwitterionic polymer
dc.typeArticle
dc.contributor.departmentDIVISION OF ENVIRONMENTAL SCIENCE & ENGG
dc.description.doi10.1016/j.memsci.2010.06.037
dc.description.sourcetitleJournal of Membrane Science
dc.description.volume362
dc.description.issue1-2
dc.description.page326-333
dc.description.codenJMESD
dc.identifier.isiut000281571100037
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

119
checked on Jan 17, 2020

WEB OF SCIENCETM
Citations

112
checked on Jan 17, 2020

Page view(s)

69
checked on Dec 29, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.