负载钛-三异丁基铝体系催化1-丁烯聚合 Ⅱ.聚1-丁烯的结构与性能  

Polymerization of 1-butene in the presence of supported titanium catalyst and Al(i-Bu)3. Structure and properties of poly(1-butene)

作　　者：姚薇[1] 贺爱华[1] 黄宝琛[1] 王日国[1] 宋景社[1] 

机构地区：[1]青岛化工学院高分子材料系

出　　处：《合成橡胶工业》1999年第3期159-162,共4页China Synthetic Rubber Industry

基　　金：国家自然科学基金

摘　　要：负载钛－Ａｌ（ｉ－Ｂｕ）３催化合成的聚１－丁烯，经溶剂萃取分离和１３Ｃ－ＮＭＲ测试表明为全同立构和无规立构的混合物，全同立构含量约６７％，熔点为９７℃。ＰＢｔ生胶的拉伸强度９．７ＭＰａ，断裂伸长率４９０％，永久变形小于１００％，邵尔Ａ型硬度８７。The structure and properties of poly(1-butene)(PBt)in the presence of supported titanium and Al(i-Bu)3 were investigated.The results of dissolution test spectra of 13C-NMR showed that the PBt include both isotactic(i-)and atactic(a-)structure.Isotactic content was about 67% and the melting point of i-PBt was 97 .Mechanical properties of the PBt were that tensile strength 9.7 MPa,elongation at break 490%,Shore A hardness 87,permanent set 82%.The PBt belonged to thermoplastic elastomer.

关 键 词：聚1-丁烯 钛 催化剂 结构 性能 负载型 橡胶 

分 类 号：TQ333.2[化学工程—橡胶工业]