MgCl2-supported titanium Ziegler-Natta catalyst using carbon dioxide-based poly(propylene ether carbonate) diols as internal electron donor for 1-butene polymerization

Abstract

MgCl2-supported titaniumZiegler-Natta catalyst containing CO2-based poly(propylene ether carbonate) diols as a potential internal electron donor (IED) was synthesized and employed for 1-butene polymerization. When compared with the Ziegler-Natta catalyst using poly(polypropylene glycol) as IED, the catalyst preparedwith poly(propylene ether carbonate) diols showed good particlemorphology, higher activity and stereoselectivity. The results suggested that existence of the carbonate group within the structure of poly(propylene ether carbonate) diols truly plays an important role in improving the performance of the catalyst for the 1-butene polymerization.