文献类型：期刊文献

中文题名：聚苯乙烯-聚甲基丙烯酸缩水甘油酯嵌段共聚物的合成与表征

英文题名：Synthesis and Characterization of Polystyrene-b-Poly(Glycidyl Methacrylate) Copolymer

作者：何晓燕[1];张健[1];黄辉[1];危大福[1];郑安呐[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2009

卷号：22

期号：2

起止页码：173

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(50390090)

语种：中文

中文关键词：甲基丙烯酸缩水甘油酯;环氧基团;聚苯乙烯;阴离子聚合

外文关键词：glycidyl methacrylate; epoxy group; polystyrene ; anionic polymerization

摘要：在常压、惰性气体保护下,以正丁基锂引发苯乙烯进行阴离子聚合,并用少量甲基丙烯酸缩水甘油酯(GMA)进行终端共聚,制得了侧基含有环氧基团的聚苯乙烯-聚甲基丙烯酸缩水甘油酯嵌段共聚物。用GPC、FT-IR1、H-NMR及盐酸-二氧六环银量法对共聚物进行了分析,并考察了GMA用量、终端共聚的反应温度及时间对环氧侧基数量的影响。结果表明:在少量四氢呋喃和氯化锂的存在下,1,1-二苯基乙烯(DPE)"盖帽"的聚苯乙烯阴离子活性种在甲苯溶剂中可引发GMA单体聚合反应,所得聚合物分子链中环氧侧基数量可根据需要进行调节。适宜的终端共聚反应温度和时间分别为-65℃和0.5 min。
The living poly（styryl）lithium was synthesized by anionic polymerization under argon atmosphere. Polystyrene-b-poly（glycidyl methacrylate） copolymers were prepared by the copolymerization reaction of poly（styryl）lithium with glycidyl methacrylate （GMA）,which were characterized with GPC, FTIR, 1H-NMR and hydrochloric acid-dioxane argentimetric method. Effects of GMA dosage, copolymerization duration and temperature on the number of side epoxy group were also studied. Results show that poly（styryl）lithium endcapped with 1,1-diphenylethylene （DPE） can initiate GMA in toluene in the presence of LiCl and a small amount of THF, and the number of side epoxy group can be adjusted. The optimal reaction temperature is -65 ℃ and the best termination time is 0.5 min.