Low protein fouling polypropylene membrane prepared by photoinduced reversible addition‐fragmentation chain transfer polymerization |
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| Authors: | Bing Hu Liang Wang Xiu‐Min Wu Song Yang Jia‐Shan Gu Hai‐Yin Yu |
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| Affiliation: | 1. Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecular‐Based Materials, College of Chemistry and Materials Science, Anhui Normal University, East Beijing Rd. 1, Wuhu, Anhui 241000, China;2. Department of Chemistry and Food Science, Chizhou University, Chizhou, Anhui 247000, China |
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| Abstract: | In this study, 2‐hydroxyethyl methacrylate and N‐isopropyl acrylamide was block grafted onto the polypropylene macroporous membrane surface by photo‐induced reversible addition‐fragmentation chain transfer (RAFT) radical polymerization with benzyl dithiobenzoate as the RAFT agent. The degree of grafting of poly(2‐hydroxyethyl methacrylate) on the membrane surface increased with UV irradiation time and decreased with the chain transfer agent concentration increasing. The poly(2‐hydroxyethyl methacrylate)‐ grafted membranes were used as macro chain transfer agent for the further block graft copolymerization of N‐isopropyl acrylamide in the presence of free radical initiator. The degree of grafting of poly(N‐isopropyl acrylamide) increased with reaction time. Furthermore, the poly(2‐hydroxyethyl methacrylate)‐ grafted membrane with a degree of grafting of 0.48% (wt) showed the highest relative pure water flux and the best antifouling characteristics of protein dispersion. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 |
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| Keywords: | block graft polymerization 2‐hydroxyethyl methacrylate N‐isopropyl acrylamide photo‐induced reversible addition‐fragmentation chain transfer radical polymerization poly(propylene) macroporous membrane |
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