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https://scholarbank.nus.edu.sg/handle/10635/89848
DC Field | Value | |
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dc.title | Polymer microspheres with permanent antibacterial surface from surface-initiated atom transfer radical polymerization of 4-vinylpyridine and quaternization | |
dc.contributor.author | Cheng, Z. | |
dc.contributor.author | Zhu, X. | |
dc.contributor.author | Shi, Z.L. | |
dc.contributor.author | Neoh, K.G. | |
dc.contributor.author | Kang, E.T. | |
dc.date.accessioned | 2014-10-09T06:58:28Z | |
dc.date.available | 2014-10-09T06:58:28Z | |
dc.date.issued | 2006-04 | |
dc.identifier.citation | Cheng, Z.,Zhu, X.,Shi, Z.L.,Neoh, K.G.,Kang, E.T. (2006-04). Polymer microspheres with permanent antibacterial surface from surface-initiated atom transfer radical polymerization of 4-vinylpyridine and quaternization. Surface Review and Letters 13 (2-3) : 313-318. ScholarBank@NUS Repository. | |
dc.identifier.issn | 0218625X | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/89848 | |
dc.description.abstract | Crosslinked poly(4-vinylbenzyl chloride) (PVBC) microspheres of about 550pm in diameter were first synthesized by suspension copolymerization of 4-vinylbenzyl chloride (VBC) in the presence of a crosslinking agent, ethylene glycol dimethacrylate (EGDMA). Subsequent surfaceinitiated atom transfer radical polymerization (ATRP) of 4-vinylpyridine (4VP), using the VBC units of PVBC on the microsphere surface as the macroinitiators, produced well-defined (nearly monodisperse) and covalently tethered poly(4-vinylpyridine) (P4VP) brushes. Quaternization of the tertiary amine groups of the P4VP brushes with hexyl bromide gave rise to a high concentration of quaternary ammonium salt (QAS) on the microsphere surfaces. The chemical composition of the microsphere surfaces at various stages of surface modification was characterized by X-ray photoelectron spectroscopy (XPS). The bactericidal effect of the QAS-functionalized microspheres on Escherichia coli (E. coli) was demonstrated. No significant loss in the surface bactericidal activity of the microsphere was observed during repeated applications. © World Scientific Publishing Company. | |
dc.source | Scopus | |
dc.subject | Alkyl halides | |
dc.subject | ATRP | |
dc.subject | Bactericidal microsphere | |
dc.subject | Poly(4-vinylpyridine) | |
dc.subject | Quaternization | |
dc.type | Article | |
dc.contributor.department | CHEMICAL & BIOMOLECULAR ENGINEERING | |
dc.description.sourcetitle | Surface Review and Letters | |
dc.description.volume | 13 | |
dc.description.issue | 2-3 | |
dc.description.page | 313-318 | |
dc.description.coden | SRLEF | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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