ANIONIC POLYMERIZATION OF ALKYL METHACRYLATES INITIATED BY nBuCu(NCy2)Li

被引：0
|
作者：
韩丙勇 [1 ]
杨万泰 [1 ]
机构：
[1] State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology(BUCT)
来源：
Chinese Journal of Polymer Science | 2009年 / 27卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Anionic polymerization; Lithium organocuprates; Alkyl methacrylate;
D O I：
暂无
中图分类号：
O631.3 [高聚物的化学性质];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Anionic polymerization of methyl methacrylate(MMA),n-butyl methacrylate(nBMA)and glycidyl methacrylate (GMA)initiated by nBuCu(NCy2)Li(1)in tetrahydrofuran(THF)at-50℃to-10℃was investigated.It was found that the polymerization of MMA and nBMA initiated by 1 proceeded quantitatively in THF to afford PMMA and PBMA with polydispersity index 1.15-1.30 and nearly 100%initiator efficiencies at-10℃.The molecular weights increased linearly with the ratio of[monomer]/[1].However,a post-polymerization experiment carried out on this system revealed a double polymer peak by GPC when fresh monomer was added after an interval of 10 min.Polymerization of styrene could be initiated by 1,but the initiator efficiency was low.
引用
收藏
页码：427 / 433
页数：7
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