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dc.contributor.authorHuang Jianying
dc.contributor.authorChu Jiayan
dc.contributor.authorZhuang Jiaming
dc.contributor.authorChen Yihong
dc.contributor.authorDai Lizong
dc.contributor.author戴李宗
dc.contributor.authorZou Yousi
dc.date.accessioned2011-09-22T02:01:51Z
dc.date.available2011-09-22T02:01:51Z
dc.date.issued2006-03
dc.identifier.citationJOURNAL OF APPLIED POLYMER SCIENCE,2006,100(5):3531-3535zh_CN
dc.identifier.issn0021-8995
dc.identifier.urihttp://dx.doi.org/doi:10.1002/app.22512
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/10759
dc.description.abstractThe living free-radical copolymerizations of styrene (St) with the polar monomers (methyl methacrylate (MMA), ethyl methacrylate (EMA), butyl methacrylate (BMA), methyl acrylate (M-A), ethyl acrylate (EA), butyl acrylate (BA), 2-hydroxyethyl acrylate (HEA), and vinyl acetate (VAc)) mediated by TEMPO and BPO as initiator at 1.25 degrees C had been analyzed by H-1 NMR and gel permeation chromatography (GPC). The data from GPC showed that the polydispersities of the resulted copolymers were below 1.5, and the rate of polymerization increased, while the polydispersity declined with increase in St molar fraction in the feed. Monomer reactivity ratios had been determined by expanded Kelen-Tudos method. r(St) = 1.32, r(MA) = 0.14; r(St) = 1.17, r(EA) 0.23; r(St) = 0.83, r(BMA) 0.20; r(St) = 0.74, r(MMA) = 0.25; r(St) 0.76, r(EMA) = 0.30; r(St) 1.27, r(BMA) = 0.59; r(St) = 1.67, r(VAc) = 1.05; and r(St) = 0.28, r(HEA) = 0.43. In the copolymerization of St with acrylates the monomer reactivity ratio 0 (St) decreases and in the copolymerization of St with methacrylates the monomer reactivity ratio r1 (St) increases while the length of the substituted group increases. (c) 2006 Wiley Periodicals, Inc.zh_CN
dc.language.isoenzh_CN
dc.publisherJOHN WILEY & SONS INCzh_CN
dc.subjectmonomer reactivity ratiozh_CN
dc.subjectcopolymerizationzh_CN
dc.subjectliving free-radical polymerizationzh_CN
dc.titleSome monomer reactivity ratios of styrene and (meth)acrylates in the presence of TEMPOzh_CN
dc.typeArticlezh_CN


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