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	以2,2′-联吡啶与丙二腈为添加剂的苯乙烯活性自由基聚合的研究; THE RESEARCH OF 2,2′-BIPYRIDINE AND MALONONITRILE AS ADDITIVES FOR STYRENE LIVING RADICAL POLYMERIZATION
	黄剑莹 ; 林建 ; 李万利 ; 颜明发 ; 林明华 ; 邹友思
	2003-08
关键词	稳定自由基 活性自由基聚合 丙二腈 2,2′-联吡啶 Living free radical polymerization TEMPO Malononitrile （MN） 2,2′ Bipyridine（Bpy）
英文摘要	［中文文摘］研究了稳定自由基存在下苯乙烯的活性聚合 .发现在 2 ,2′ 联吡啶的存在下 ,苯乙烯聚合的分子量控制效果提高 ,分子量可控 ,分子量分布较窄 .在与丙二腈共同作用时 ,可在 4h内达到 85 %的转化率 ,分子量分布在 1 5以下 ,分子量控制误差在 2 0 %以下 .设计分子量在 1× 10 4 ～ 9× 10 4 的范围内 ,实测分子量和理论分子量相近 .［英文文摘］The living free radical polymerization of styrene was studied with benzoyl peroxide as the initiator in the presence of TEMPO (2,2,6,6 tetramethylpiperidinyl 1 oxy).It was found that styrene polymerization was distinctly accelerated by means of using malononitrile (MN) as additive.The purpose of this paper is to explore the effect of MN/bpy on the control of molecular weight.These mixture additives were able to control the polymerization of styrene to high conversion (85%) in 4 hours, and samples of molecular weight from 1 ×104 to 9 ×104 and with polydispersities of 1. 15 to 1. 4 were readily obtained. In comparison with the polymerization without any additives , these systems represented a dramatic improvement in the ability to control the molecular weight . The molecular weight of the polymer gradually increased with time , while the narrow molecular weight distribution remained unchanged. The molecular weight evolved in a nearly linear fashion with increasing conversion.Using a 1∶112 molar mixture of BPO and TEMPO with [ Bpy ]P[ TEMPO ] = 2P1 , [MN ]P[ TEMPO ] = 215 , the conversion of the polymerization at 135 ℃reached 85% in 4 hours , and the polydispersity was below 115 , and the difference between the theoretical molecular weight and the experimental molecular weight was controlled below 20%.; 固体表面物理化学国家重点实验室基金 (NO:1130)
语种	中文
出版者	中国化学会; 中国科学院化学研究所
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/3036]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	黄剑莹,林建,李万利,等. 以2,2′-联吡啶与丙二腈为添加剂的苯乙烯活性自由基聚合的研究, THE RESEARCH OF 2,2′-BIPYRIDINE AND MALONONITRILE AS ADDITIVES FOR STYRENE LIVING RADICAL POLYMERIZATION[J],2003.
APA	黄剑莹,林建,李万利,颜明发,林明华,&邹友思.(2003).以2,2′-联吡啶与丙二腈为添加剂的苯乙烯活性自由基聚合的研究..
MLA	黄剑莹,et al."以2,2′-联吡啶与丙二腈为添加剂的苯乙烯活性自由基聚合的研究".(2003).

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