A bis-carbazolyl bis-phenoxy ether complex and a preparation method and application thereof

By synthesizing a biscarbazolylbisphenoxy ether complex as the main catalyst, the problems of low activity and low cyclic olefin insertion rate of existing non-metallocene catalysts were solved, and the preparation of COC with high catalytic activity, high transparency, and toughness was achieved, which is suitable for optical materials.

CN120058766BActive Publication Date: 2026-07-10WANHUA CHEM GRP CO LTD
View PDF 5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WANHUA CHEM GRP CO LTD
Filing Date
2023-11-29
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing non-metallocene catalysts for COC polymerization suffer from low catalytic activity, low cyclic olefin monomer insertion rates, and difficulty in controlling polymer structure and molecular weight distribution, leading to increased COC brittleness and inconvenient processing.

Method used

A biscarbazolylbisphenoxy ether complex was developed as the main catalyst and synthesized via Williamson reaction, Suzuki coupling reaction and other steps. It is used to catalyze the copolymerization of ethylene and/or α-olefins with cycloolefins, and to optimize the steric and electronic effects of the catalytic active center.

Benefits of technology

It improves catalytic activity and high-temperature resistance, reduces the uneven distribution of cyclic olefin segments, and enhances the transparency and toughness of COC, making it suitable for optical applications.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure SMS_1
    Figure SMS_1
  • Figure SMS_2
    Figure SMS_2
  • Figure SMS_3
    Figure SMS_3
Patent Text Reader

Abstract

The application provides a double-carbazole double-phenoxy ether complex, a preparation method and application thereof. The complex is used for catalyzing copolymerization of ethylene and / or alpha-olefin and cyclic olefin, has very high catalytic activity and high-temperature resistance, and the prepared copolymer product has very good optical properties, such as good transparency, high refractive index, high Abbe number and the like; meanwhile, the copolymer product has very good mechanical properties, such as high strength and good toughness; in addition, the copolymer has very good heat resistance, such as high-temperature yellowing resistance. Therefore, the complex provided by the application is very suitable for catalyzing copolymerization of ethylene and / or alpha-olefin and cyclic olefin, and the obtained copolymer product has very good industrialization prospect in the processing application in the optical field.
Need to check novelty before this filing date? Find Prior Art