外给电子体对1-丁烯聚合的影响  

Effects of external electron donors on polymerization of 1-butene

作　　者：许春生[1] 邵华锋[1] 姚薇[1] 黄宝琛[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《合成橡胶工业》2010年第4期281-284,共4页China Synthetic Rubber Industry

基　　金：国家"八六三"计划新材料领域项目(2006AA03Z546)

摘　　要：用Ziegler-Natta催化剂合成高全同结构的聚1-丁烯,考察了3种硅烷类外给电子体对1-丁烯聚合的影响。结果表明,在相同的聚合条件下,外给电子体对聚1-丁烯全同含量的影响从大到小依次为D-A、D-B和DDS,其中D-A更有利于合成高全同含量及性能更好的聚1-丁烯;氢气作为链转移剂能很好地控制聚1-丁烯的相对分子质量,外给电子体对其的敏感性从小到大依次为D-B、D-A和DDS。氢气在用量不大时可以起到提高1-丁烯转化率的作用。High isotactic poly（1-butene）（iPB） was synthesized with Ziegler-Natta catalyst,and the effects of three external electron donors on polymerization of 1-butene were investigated.The results showed that the effect order of external donors on isotacticity of iPB was D-A,D-B and then DDS.So the external electron donor D-A was favorable to synthesis of high isotactic poly（1-butene） with good properties.Hydrogen gas as a chain transfer agent could regulate the relative molecular mass of the poly（1-butene） very well,and the order of hydrogen gas sensitivity of external electron donors was DDS,D-A,D-B.Hydrogen gas could increase conversion of 1-butene when its amount was small.

关 键 词：全同聚1-丁烯 外给电子体 氢气 物理机械性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]