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MgCl₂-Supported Titanium Ziegler-Natta Catalyst Using Carbon Dioxide-Based Poly(propylene ether carbonate) Diols as
Xiaopeng Cui1, Qing Bai2, Kai Ma3
1Department of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130, China. xpcuihebut@163.com.
Abstract:
MgCl₂-supported titanium Ziegler-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 prepared with poly(propylene ether carbonate) diols showed good particle morphology, 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.
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