4-methyl-1-pentene homopolymer as well as preparation method and application thereof
By using a non-ceramic transition metal catalyst to prepare 4-methyl-1-pentene homopolymer under specific conditions, the problems of low isotacticity and insufficient rigidity were solved, and the preparation of polymers with high isotacticity and high rigidity was achieved.
CN122213282APending Publication Date: 2026-06-16CHINA PETROLEUM & CHEMICAL CORP +2
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Patent Information
- Application Number
- CN202411840618.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-06-16
AI Technical Summary
Technical Problem
Existing 4-methyl-1-pentene homopolymers suffer from low isotacticity and insufficient rigidity.
Method used
4-Methyl-1-pentene homopolymer was prepared by polymerization under closed conditions using a non-ceramic transition metal catalyst and organoaluminum compounds in the presence of an organic solvent, an external electron donor, and hydrogen. Preferred conditions included specific temperature and pressure control.
Benefits of technology
The prepared 4-methyl-1-pentene homopolymer has an isotacticity of ≥98%, a flexural modulus of >1100MPa, and a tensile modulus of >1500MPa, exhibiting excellent rigidity and high isotacticity.
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Abstract
The invention relates to the field of high polymer materials, and discloses a 4-methyl-1-pentene homopolymer as well as a preparation method and application thereof. The isotacticity of the 4-methyl-1-pentene homopolymer is greater than or equal to 98%, and the bending modulus is gt; the tensile modulus is gt under the pressure of 1100 MPa; and the pressure is 1,500 MPa. The 4-methyl-1-pentene homopolymer disclosed by the invention has the advantages of being very high in isotacticity and good in rigidity.
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