新型超支化聚合物聚氨酯的合成  

Synthesis of New Hyperbranced Polymers Polyurethane

作　　者：毕艳华[1] 封瑞江[1] 王东[1] 曹正兵[1] 时维振[1] 

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《辽宁化工》2003年第11期492-495,共4页Liaoning Chemical Industry

摘　　要：研究了由丁二酸酐和二乙醇胺为起始原料合成超支化聚合物的方法 ;采用分步反应合成出了几种聚氨酯类超支化聚合物 ,考察了反应时间、带水剂、封端剂及其配比对反应结果的影响。试验结果表明 ,第 1步反应时间为 3h ,第 2步缩和脱水反应时间为 8h(甲苯为带水剂 ) ,第 3步用脱水剂封端脱水为 4 8h ;甲苯为较好的带水剂 ;带水剂、封端剂及其配比对产品粘度、溶解性、颜色等影响不大 ;产物的比浓对数粘度在 0 .0 2dL/It was studied that the synthesis process of hyperbranched polymers from succinic anhydride and diethanolanmine. Several polymers of polyurethane were synthesized using synthesis method of several steps. The effects of time-reaction, water-taking agent , capping agent and their ratio on reaction were investigated. The results showed that it took 3 h for the first step, 8 h for the second step (condensating-dehydrating toluene as water-taking agent) and 48h for the third step (capping-dehydrating using dehydrating agent). Toluene was suitable water-taking agent. Water-taking agent, capping agent and their ratio didn't largely affect the viscosity, solubility and colourity of product. And the inherent viscosity of product was about 0.02 dL/g.

关 键 词：超支化聚合物 聚氨酯 合成 丁二酸酐 二乙醇胺 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]