以不同种类不同用量的醇改性TiCl4/MgCl2 催化丁二烯聚合。结果表明 ,与改性前催化剂合成的高结晶度硬塑料状反式聚丁二烯不同 ,改性催化剂制备的聚丁二烯为低结晶度的弹性体 ,其乙烯基质量分数已达到中乙烯基聚丁二烯的范畴 ,反式 - 1,4 -结构质量分数仍高于 5 0 % ,顺式 - 1,4 -结构质量分数基本低于 10 %。随醇用量的增加 ,乙烯基质量分数可进一步提高。 Different kinds of different amounts of alcohol modified TiCl4 / MgCl2 catalyzed butadiene polymerization. The results show that, unlike the high-crystallinity hard plastic trans-polybutadiene synthesized by the pre-catalyst, the polybutadiene prepared by the modified catalyst is a low-crystallinity elastomer with a vinyl content of up to 15% In the category of polybutadiene, the mass fraction of trans - 1,4 - is still higher than 50%, and the mass fraction of cis - 1,4 - is almost less than 10%. With the increase of the amount of alcohol, vinyl content can be further increased.