Metal organic complex as well as preparation method and application thereof
By designing metal-organic complexes with specific structures, the problem of insufficient catalytic activity of traditional catalysts in the copolymerization of olefins and α-olefins was solved, achieving high-activity and selective catalytic effects and obtaining polymers with high molecular weight and narrow molecular weight distribution.
Patent Information
- Application Number
- CN202411407888.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional organometallic complex catalysts have room for improvement in their catalytic activity during the copolymerization of olefins and α-olefins.
A metal-organic complex with a specific structure was designed. Through a specific ligand molecular structure, it forms three coordinate bonds and four covalent bonds with the central metal M. Combined with specific steric hindrance effects and electron-donating groups, it forms a cationic active center, which improves catalytic activity. Furthermore, the insertion direction of the monomer is fixed by adjusting the electronic and volume effects of the substituent groups.
It achieved high catalytic activity, regioselectivity and stereoselectivity, obtained high molecular weight polymer products with narrow molecular weight distribution, and improved the uniformity of comonomer distribution and insertion rate in the polymer backbone.