Disclosed are halogenated amide esters that are suitable as internal electron donors in procatalyst compositions. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit improved catalyst activity and/or improved catalyst selectivity and produce propylene-based olefins with broad molecular weight distribution.
揭示了适用作为内部电子给体的卤代酰胺酯在前催化剂组合物中。含有这种前催化剂组合物的齐格勒-纳塔催化剂组合物表现出改善的催化剂活性和/或改善的催化剂选择性,并生产具有广泛分子量分布的
丙烯基烯烃。