The copolymer of propylene with a small amount of butene was prepared by heterogeneous Ziegler?Natta catalyst.

• 用负载型Ziegler－Nata催化剂合成了丙烯同少量丁烯的共聚物，考察了单体进料比对催化活性的影响，发现此体系存在“共单体效应”。