聚氨酯丙烯酸酯大分子单体制备及其与苯乙烯的固化  

Preparation of the Urethane methacrylate Macromer and It's Curing Behavior with Styrene

作　　者：李勇进[1] 王公善[2] 颜德岳[1] 

机构地区：[1]上海交通大学化学化工学院,上海200240 [2]同济大学材料科学与工程学院,上海200092

出　　处：《建筑材料学报》2000年第3期292-296,共5页Journal of Building Materials

基　　金：国家自然科学基金!(5 96 730 0 2 )

摘　　要：制备了聚氨酯丙烯酸酯大分子单体 (聚乙二醇与甲苯二异氰酸酯反应得到端异氰酸酯基聚乙二醇 ,再与甲基丙烯酸羟乙酯反应即可得之 ) ,并将其与苯乙烯聚合 ,得到透明共聚物 ;讨论了预聚温度、催化剂等对大分子单体制备的影响 ,且对大分子单体与苯乙烯共聚的固化过程进行了探讨 .Urethane methacrylate macromer was prepared by reacting tolylene diisocynate(TDI) and polyethyleneglycol(PEG), followed by end capping with 2 hydroxyethyl methacrylate(HEMA) in the presence of dibutytin dilaurate(DBTL) as catalyst. The macromer polymerized with styrene(St) in the presence of free radical initiator to obtain a crosslinked transparent copolymer. The influence of several factors on the preparation of the macromer was studied. In addition, the curing behavior of the macromer with styrene was also investigated.

关 键 词：聚氨酯丙烯酸酯大分子单体 苯乙烯 交联 

分 类 号：TQ316.342[化学工程—高聚物工业] TQ225.24