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Citation: YU Guang-Qian, ZHANG De-Ze, SUN Fu, QIAO Li-Jun, TANG Tao, HUANG Bao-Tong. A Novel Type of Polymer-Supported Metallocene Catalyst for Ethylene Polymerization[J]. Chinese Journal of Applied Chemistry, ;2001, 18(4): 309-311. shu

A Novel Type of Polymer-Supported Metallocene Catalyst for Ethylene Polymerization

1.
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chem istry, Chinese Academy of Sciences; Union Laboratory of Polymer Chemistry Chinese Academy of Sciences and China Petro-Chemical Corporation, Changchun 130022

Received Date: 20 June 2000
Available Online: 2 November 2000
Fund Project: 国家科技部"九五"攻关项目(96-A12-02-01) (96-A12-02-01)中国科学院重点课题(L120001W) (L120001W)

A novel polymer-supported metallocene catalyst has been prepared. The polymer-supported metallocene displayed considerably high activity in ethylene polymerization,the highest being 3.62×10⁷ g/(mol·h), the molecular weight of the polyethylene produced was M_n=1.29×10⁵, about 3~4 times those prepared by corresponding homogeneous zirconocenes. The polymer supported metallocene [poly(styrene-acrylamide)supported zirconocene] keeps the characteristics of homogeneous metallocene catalysts, and offers some features, such as adaptable to gas phase and slurry processes; easy to prepare in low cost; relatively high activity and lower MAO/Zr ratio; lower inorganic residues in the polyolefins as compared to those using SiO₂, Al₂O₃ or MgCl₂; unitary active structure, no complex surface as with SiO₂; good control of morphology of the resulting polymer.
- polymer-support,
- metallocene catalyst,
- ethylene polymerization
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