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	Some monomer reactivity ratios of styrene and (meth)acrylates in the presence of TEMPO
	Huang Jianying ; Chu Jiayan ; Zhuang Jiaming ; Chen Yihong ; Dai Lizong ; Dai LZ(戴李宗) ; Zou Yousi
	2006-03
关键词	monomer reactivity ratio copolymerization living free-radical polymerization
英文摘要	The 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.
语种	英语
出版者	JOHN WILEY & SONS INC
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1002/app.22512]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Huang Jianying,Chu Jiayan,Zhuang Jiaming,et al. Some monomer reactivity ratios of styrene and (meth)acrylates in the presence of TEMPO[J],2006.
APA	Huang Jianying.,Chu Jiayan.,Zhuang Jiaming.,Chen Yihong.,Dai Lizong.,...&Zou Yousi.(2006).Some monomer reactivity ratios of styrene and (meth)acrylates in the presence of TEMPO..
MLA	Huang Jianying,et al."Some monomer reactivity ratios of styrene and (meth)acrylates in the presence of TEMPO".(2006).

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