Ether metal complex as well as preparation method and application thereof
By combining ether-based metal complex catalysts with low-cost co-catalysts, the problems of low activity and high cost of existing olefin catalysts have been solved, enabling the efficient preparation and molecular weight control of low molecular weight polyethylene.
Patent Information
- Application Number
- CN202610026262.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-09
- Publication Date
- 2026-05-29
AI Technical Summary
Existing olefin catalysts exhibit low catalytic activity, low ethylene monomer utilization, wide molecular weight distribution of polyethylene wax, and high cost in olefin polymerization reactions. In particular, metallocene catalysts require harsh conditions and are expensive co-catalysts in the production of low molecular weight polyethylene.
Ether-based metal complexes were used as catalysts to prepare complexes containing sterically hindered substituents via complexation reactions. Inexpensive co-catalysts such as sesquiethylaluminum chloride were combined to regulate the molecular weight and distribution of the polymer.
The method achieves efficient preparation of low molecular weight polyethylene under mild reaction conditions, with a simple synthesis process, low cost, high catalytic activity, good thermal stability, and strong polymer molecular weight control performance.