Citation: Shao Quan LIN, Qi Xing ZHANG, Hai Hua WANG. Copolymerization of Ethylene/1-Butene with Heterogeneous TiCl₄/(α-Diimine)nickel(Ⅱ) Complex Combined Catalyst[J]. Chinese Chemical Letters, ;2003, 14(9): 911-913. shu

Copolymerization of Ethylene/1-Butene with Heterogeneous TiCl₄/(α-Diimine)nickel(Ⅱ) Complex Combined Catalyst

Institute of Polymer Science, Zhongshan University, Guangzhou 510275

Received Date: 31 January 2002

Fund Project: This project is supported by the National Natural Science Foundation of China(29874039) and the Foundation of Guangdong Province(001280).

The new type heterogeneous combined catalyst system TiCl₄-(α-diimine)nickel(Ⅱ) complexes/MgCl₂-SiO₂/AlR₃was prepared.Ethylene and 1-butene were copolymerized with thecatalysts in slurry phase.It was found that with combined catalyst, the copolymers with lowerdensity and higher branched degree were obtained.¹³CNMR results showed that in the obtainedcopolymers existed not only ethyl but also some other kinds of branches due to the fact thatethylene exhibits the behavior of oligomerization and copolymerizafion in-situ with combinedcatalysts.
- Combined catalyst,
- oligomerization and copolymerization in-situ,
- copolymers
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