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Metallocene compound and application

A metallocene compound and catalyst technology, applied in metallocene compounds and application fields, can solve the problem of low molecular weight of polymers, and achieve the effects of high catalytic activity, good high temperature tolerance, and improved insertion rate

Active Publication Date: 2021-05-11
SHANDONG JINGBO PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the metallocene catalysts disclosed in the prior art can ensure a high comonomer insertion rate under high-temperature polymerization conditions, the molecular weight of the obtained polymer is generally low, and it is mainly aimed at the copolymerization reaction of ethylene and 1-hexene

Method used

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  • Metallocene compound and application
  • Metallocene compound and application

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preparation example Construction

[0065] The present invention has no special limitation on the preparation method of the metallocene compound, and can be synthesized and prepared by using a compound preparation method well known to those skilled in the art; in the present invention, the preparation method of the metallocene compound preferably includes:

[0066] The compound of formula 1 structure, n-butyllithium, MX 4 React with triethylamine, obtain the metallocene compound of formula I structure;

[0067]

[0068] In the present invention, R in the formula 1 1 , R 2 and R 3 with the above technical scheme described R 1 , R 2 and R 3 Consistent; MX 4 M and X in are consistent with M and X described in the above-mentioned technical solution.

[0069] In the present invention, the compound of formula 1 is preferably according to image 3 The synthetic route shown is prepared; the preparation method of the compound of formula 1 structure preferably comprises:

[0070] reacting the compound of formu...

Embodiment 1～11

[0102] according to figure 2 The shown route diagram prepares the formula IV structure compound, R in the formula II 2 For methyl or tert-butyl:

[0103] (1)R 1=Phenyl, 1-naphthyl, 9-anthracenyl are prepared according to the following method:

[0104] At room temperature, take 100 mmol of the compound of formula II (commercially available) and dissolve it in 400 mL of dry acetonitrile, replace the system with a nitrogen atmosphere, add KOH (120 mmol) as a solid, stir for 4 h, and then add 150 mmol of methyl iodide (CH 3 1), continue to react for 8h, stop the reaction, filter, remove acetonitrile by rotary evaporation, add 100mL ether and 150mL water, separate and retain the organic phase, then extract the aqueous phase with ether for 3 times, combine and retain the organic phase, dry over anhydrous magnesium sulfate, Filtration, rotary evaporation to remove the solvent, and substantially equivalent to obtain the compound of formula III structure;

[0105] Under a nitroge...

Embodiment 1

[0122] Example 1: R 1 = methyl, R 2 = methyl, R 3 = phenyl;

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Abstract

The invention provides a metallocene compound with a structure as shown in a formula I. The metallocene compound provided by the invention has the advantages of good thermal stability, high catalytic activity and the like, can be used as a main catalyst to catalyze olefin polymerization reaction, and can efficiently catalyze olefin copolymerization reaction under the activation action of a small amount of cocatalyst to obtain a polymer with high molecular weight and high comonomer insertion rate. The invention also provides an application of the metallocene compound.

Description

technical field [0001] The invention belongs to the technical field of catalysts, in particular to a metallocene compound and its application. Background technique [0002] Polyolefin products have become the most widely used synthetic resin materials in production and life due to their abundant raw materials, low price, easy production and processing, good mechanical properties, and superior performance. The development level of the polyolefin industry It directly represents the development level of a country's petrochemical industry and is an important part of the national economy and national defense strategy. Olefin polymerization catalysts directly determine the internal structure and morphology of polyolefin products, and are the core technology in the development of the polyolefin industry; the emergence of metallocene catalysts basically solves the shortcomings of Ziegler-Natta catalysts, and has a single The active center has relatively higher activity, can catalyz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F17/00C08F210/16C08F4/6592
CPCC07F17/00C08F210/16C08F4/65922Y02P20/52
Inventor 李彪刘龙飞赵永臣栾波
Owner SHANDONG JINGBO PETROCHEM
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