NDLI: Functional poly(vinylidene fluoride) copolymer membranes via surface-initiated thiol

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Back cover

Polymer Chemistry Vol - 2 Issue - 7

Polymer Chemistry Vol - 2 Issue - 6

Polymer Chemistry Vol - 2 Issue - 5

Polymer Chemistry Vol - 2 Issue - 4

Polymer Chemistry Vol - 2 Issue - 3

Polymer Chemistry Vol - 2 Issue - 2

Polymer Chemistry Vol -1

Functional poly(vinylidene fluoride) copolymer membranes via surface-initiated thiol–ene click reactions

Content Provider	Royal Society of Chemistry (RSC)
Author	Cai, Tao Neoh, K. G. Wang, Rong Kang, E. T.
Copyright Year	2011
Abstract	Thermally induced graft copolymerization of allyl methacrylate (AMA) from ozone-preactivated poly(vinylidene fluoride) (PVDF) chains was first carried out in N-methyl-2-pyrrolidone (NMP) solution to produce the PVDF-g-PAMA copolymers. The PVDF-g-PAMA copolymers were cast, by phase inversion in an aqueous medium, into microporous membranes with enriched allyl groups on the membrane and pore surfaces. The pendant allyl groups in the PAMA side chains allowed the thiol–ene click grafting of thiol-functionalized moieties on the membrane surface. Thermally initiated thiol–ene click reaction with 3-mercaptopropionic acid (MPA) produced the PVDF-g-P[AMA-comb-MPA] membrane which exhibited a pH-responsive permeation behavior, with the most drastic change in permeation rate of the aqueous media being observed between pH 2 and 4. The PVDF-g-P[AMA-comb-DMAPS] membrane was synthesized via UV-initiated thiol–ene click reaction of 1,6-hexanedithiol (HDT) with the PVDF-g-PAMA membranes, using 2,2-dimethoxy-2-phenylacetophenone (DMPA) as the photoinitiator, followed by thiol-Michael addition reaction of the zwitterionic molecules, N,N′-dimethyl-(methylmethacryloyl ethyl) ammonium propanesulfonate (DMAPS). A significant reduction in microbial adhesion was observed on the PVDF-g-P[AMA-comb-DMAPS] membrane in a flow chamber, in comparison to the pristine hydrophobic PVDF membrane.
Starting Page	1849
Ending Page	1858
Page Count	10
File Format	HTM / HTML PDF
ISSN	17599954
Volume Number	2
Issue Number	8
Journal	Polymer Chemistry
DOI	10.1039/c1py00106j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	PAMA Ammonium Polyvinylidene fluoride Allyl group Hydrophobe Grafting Photoinitiator N-Methyl-2-pyrrolidone AMA Reddit Carboxylic acid Addition reaction 2,2-Dimethoxy-2-phenylacetophenone
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Biochemistry Bioengineering Biomedical Engineering Polymers and Plastics

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