负载钛-三异丁基铝体系催化1-丁烯聚合 Ⅰ.聚合条件对1-丁烯聚合的影响  

Polymerizaton of 1-butene in the presence of supported titanium catalyst and Al(i-Bu)3Ⅰ.Effect of polymerization conditions on polymerization of 1-butene

作　　者：贺爱华[1] 姚薇[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2期34-36,共3页China Synthetic Rubber Industry

基　　金：国家自然科学基金

摘　　要：考察了负载钛（Ｔｉ）－三异丁基铝（Ａｌ）催化体系聚合条件对１－丁烯（Ｂｔ）聚合的影响。实验表明，该催化体系对Ｂｔ聚合催化效率可达３４．８ｋｇ／ｇ，聚合物为全同立构和无规立构聚１－丁烯的混合物。在一定的Ｔｉ／Ｂｔ（摩尔比）下，随着Ａｌ／Ｔｉ（摩尔比，下同）的增加和温度的升高，转化率都是先升高后下降，最佳Ａｌ／Ｔｉ值为３００，温度为３０℃。聚合物的相对分子质量和全同立构ＰＢｔ含量均随Ａｌ／Ｔｉ和温度升高而逐渐下降。The polymerization of 1-butene in the presence of supported titanium catalyst (Ti) and Al(i-Bu)3 was investigated .The catalytic efficiency was more than 34.8 kg /g .The poly(1-butene)(PBt) included both isotactic structure and atactic structure.When Ti/Bt was fixed,with increasing of Al/Ti and temperature,the conversion of Bt increased at first and then decreased,but the relative molecular mass of the polymer and content of the isotactic polymer decreased.The proper polymerization conditions were:Ti/Bt ...

关 键 词：1-丁烯 配位聚合 负载钛催化剂 聚合条件 

分 类 号：TQ316.314[化学工程—高聚物工业]