Palladium-containing catalyst and preparation method thereof, composition prepared from palladium-containing catalyst, and application of composition

Abstract

The invention relates to a palladium-containing catalyst and a preparation method thereof, a composition prepared from the palladium-containing catalyst, and application of the composition. The structural formula of the palladium-containing catalyst is described in the description. The preparation method of the palladium-containing catalyst comprises the following steps: firstly, dissolving 2-hydroxy-1,4-naphthoquinone and substituted aniline into an organic solvent for carrying out a reaction so as to obtain an aniline naphthoquinone ligand; dissolving the aniline naphthoquinone ligand into an organic solvent, and adding a hydrogen extraction reagent for carrying out a reaction so as to obtain a ligand salt compound; adding a palladium precursor into the ligand salt compound for carryingout a reaction so as to obtain an intermediate metal complex; finally, adding a pyridine reagent into the intermediate metal complex for carrying out a reaction to obtain the catalyst. The compositioncan be prepared from the palladium-containing catalyst and a catalyst promoter. The palladium-containing catalyst uses palladium as a metal center, is higher in activity of catalyzing homopolymerization of ethylene and copolymerization of olefin and a polar monomer, also can reach a certain activity without needing a catalyst promoter, and is good in economical efficiency and high in polarity/functional monomer insertion rate. The composition prepared from the palladium-containing catalyst has higher catalytic activity when a very small amount of the catalyst promoter is used.

Description

technical field [0001] The invention belongs to the field of olefin catalysis, and relates to a palladium-containing catalyst, a preparation method thereof, a composition prepared therefrom and applications thereof, in particular to a palladium-containing catalyst for catalyzing ethylene or ethylene and polar / functional monomers, and its preparation Methods, compositions made therefrom and applications. Background technique [0002] With the in-depth research on coordination polymerization catalysts, several major types of olefin polymerization catalysts have emerged: Ziegler-Natta catalysts, metallocene catalysts, non-locene early transition metal catalysts and late transition metal catalysts. The development of these catalysts has greatly promoted the progress of industrialization. In recent years, late transition metal olefin polymerization catalysts have been greatly developed. Late transition metal olefin polymerization catalysts refer to a type of olefin polymerizatio...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of low transition metal catalyst catalyzed copolymerization activity of olefins and polar / functional monomers in the prior art, low comonomer insertion rate, and the need to add a large amount of co-catalysts to improve catalytic activity or insertion rate, and provide Olefin polymerization catalyst with high catalytic activity and high comonomer insertion rate

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