It was found that the isoprene rubber with mole fraction of cis-unit 95% could be obtained if the catalyst component were added in equal mole ratio.

• 用二苯醚改性钛系催化剂合成了异戊橡胶,讨论了催化剂各组分加料顺序对单体转化率、产物凝胶含量和相对分子质量的影响。