Heterogeneous polymerization reaction catalyst and application of heterogeneous polymerization reaction catalyst to preparing homopolymer and copolymer

Abstract

The invention relates to a heterogeneous polymerization reaction catalyst and application of the heterogeneous polymerization reaction catalyst to preparing a homopolymer and a copolymer. The heterogeneous polymerization reaction catalyst mainly comprises a supported catalyst promoter A and a catalyst B, the structure of the catalyst B is shown in the formula (I) or the formula (II), R1-R5 are respectively independently chosen from hydrogen, alkyl group, substituendum of the alkyl group, alkoxy group, alkyl sulphanyl, halogen, nitryl, aryl group or substituendum of the aryl group in the formula, the adjacent groups in the R1-R5 form a ring and the number of the formed ring structures is less than 4, R6 is the alkyl group or the aryl group, and L is alkyl group substituted phosphine or allyl. The heterogeneous polymerization reaction catalyst can be used to prepare the homopolymer and the copolymer, the activity is relatively high, the tolerance of the polar functional group is relatively good, the molecular weight of the prepared polymer is relatively large, the distribution of the molecular weight is relatively narrow, the morphology is controllable, no subsequent processing is needed, and the phenomenon of adhesion on a kettle is effectively improved.

Description

technical field [0001] The invention belongs to the field of polymerization catalysis, and relates to a heterogeneous polymerization reaction catalyst and its application in preparing homopolymers and copolymers. Background technique [0002] At present, catalysts are divided into homogeneous catalysts and heterogeneous catalysts according to the phase state of the reaction system; homogeneous catalysis refers to the catalytic process in which the catalyst and reactants are in the same homogeneous phase, and the reactants, catalysts and products in homogeneous catalysis They are all in the same phase, the contact area is large, the amount of catalyst is small, and the catalytic efficiency is high. However, the product, catalyst and raw materials need to be separated after the reaction. The process is complicated. Often the catalysts are disposable and cannot be reused. Poor; heterogeneous catalysis refers to the catalytic process in which the reactants and the catalyst are n...

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the defects of low catalytic activity and poor tolerance to polar functional groups of heterogeneous catalysts in the prior art, and provide a non-homogeneous catalyst with high catalytic activity and strong tolerance to polar functional groups. Homogeneous Olefin Polymerization Catalysts and Their Applications in Preparation of Homopolymers and Copolymers

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