Effects of various external electron donors on activity, response to hydrogen regulation and stereoselectivity of DQ catalyst in propylene polymerization were studied.

• 研究了使用不同的外给电子体进行丙烯聚合时,DQ催化剂活性、氢调敏感性、立体定向性以及聚合物相对分子质量和相对分子质量分布的变化。