Different kind of promoter can constitutes different complexed catalytic system, with H2O more preferable than MeOH in that more conversion of oligomerization and polymerization degree is obtained.

• 采用不同的促进剂对反应也会有一定影响，选用水作促进剂比选用甲醇作促进剂能够得到更高的转化率和聚合度。