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	NaNO_2/FeSO_4存在下聚苯乙烯大分子引发剂的合成及嵌段共聚; Synthesis and Characterization of Macroinitiator Polystyrene and Block Copolymerization in the Presence of Sodium Nitrite and Iron(Ⅱ) Sulfate
	许淼清(泉州师范学院化学系) ; 黄剑莹 ; 颜明发 ; 林明华 ; 林强 ; 陈一虹 ; 邹友思
	2005-08
关键词	聚苯乙烯 活性自由基聚合 嵌段共聚物 Polystyrene Living free radical polymerization Block copolymer
英文摘要	［中文文摘］用NaNO2/FeSO4·7H2O体系替代TEMPO在有机相中合成分子量可控的聚苯乙烯大分子引发剂,引发苯乙烯聚合及酯类单体[如甲基丙烯酸甲酯(MMA)、丙烯酸甲酯(MA)和丙烯酸乙酯(EA)等]聚合,得到两嵌段共聚物.其多分散性指数小于1.5,体现了可控聚合的特征.用大分子引发剂引发苯乙烯进行活性链增长,单体的转化率较高.嵌段共聚物的实测分子量与理论分子量相近,结构经1HNMR和GPC表征.NaNO2/FeSO4·7H2O体系在纯有机相中的应用降低了活性聚合的成本,有利于工业化应用.［英文文摘］In the presence of sodium nitrite and iron(â ¡) sulfate the controlled polystyrenes with different molecular weight weres synthesized. The polystyrene macroinitiator could initiate the polymerization of methyl methacrylate(MMA), methyl acrylate(MA), ethyl acrylate(EA), and styrene(St). All the polymerizations have the characters of the living polymerization that the molecular weight of the copolymer gradually increased with conversion and the polydispersity indexes are below 1.5. In addition, block copolymerâ ²s experimental molecular weight is similar to theoretical molecular weight.The basic mechanism for the control of radical polymerization is thus an it rox idem ediated process,such as TEM PO , and the price was reduced greatly, which is of benef it s to the industries application. The block copolymerization for mation was confirmed by 1H NMR and GPC measurements.; 国家“八六三”计划项目(NO:2001AA313070)
语种	中文
出版者	中华人民共和国教育部(吉林大学承办)
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/3070]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	许淼清(泉州师范学院化学系),黄剑莹,颜明发,等. NaNO_2/FeSO_4存在下聚苯乙烯大分子引发剂的合成及嵌段共聚, Synthesis and Characterization of Macroinitiator Polystyrene and Block Copolymerization in the Presence of Sodium Nitrite and Iron(Ⅱ) Sulfate[J],2005.
APA	许淼清.,黄剑莹.,颜明发.,林明华.,林强.,...&邹友思.(2005).NaNO_2/FeSO_4存在下聚苯乙烯大分子引发剂的合成及嵌段共聚..
MLA	许淼清,et al."NaNO_2/FeSO_4存在下聚苯乙烯大分子引发剂的合成及嵌段共聚".(2005).

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