【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。更多还原

【Abstract】 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 less than 2×10-5,Al/Ti 300,temperature 30 ℃.更多还原