Citation: Guang Qian YU, De Ze ZHANG, Fu SHUN, Li Jun QIAO, Tao TANG, Bao Tong HUANG. A New Type of Polymer-Supported Metallocene Catalyst for Ethylene Polymerization[J]. Chinese Chemical Letters, ;2001, 12(3): 257-260. shu

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

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

Received Date: 14 August 2000

A new polymer-supported metallocene catalyst has been prepared. The polymersupported metallocene displayed considerably high activity in ethylene polymerization,the highest being 3.62×10⁷gPE/molZr·h, the molecular weight of the polyethylene produced was Mn=1.29×10⁵, about 3-4 times those of corresponding homogeneous zirconocenes. The polymersupported metallocene 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 cases of 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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