Catalyst for synthesizing polyketone by copolymerization of carbon monooxide and phenyl ethylene

Abstract

The invention relates to a catalyst used for synthesizing polyketone by copolymerization of carbon monoxide and cinnamene and a method for synthesizing the same. The catalyst comprises palladium acetate, para-benzoquinone, paratoluenesulfonic acid, fluoboric acid or a mixture of the palladium acetate, the para-benzoquinone, the paratoluenesulfonic acid and the fluoboric acid and 4, 4'-dicarboxylic acid carbethoxyl group-2,2'- dipyridyl. In the invention, carbon monoxide and cinnamene are taken as materials, and absolute methanol is taken as a solvent, and under the conditions of a temperatureof between 20 and 80 DEG C and a pressure of between 0.1 and 10Mpa and in the presence of the catalyst, the materials undergo the polymerization reaction for 1 to 3 hours. The catalyst provided by the invention has the advantages of good activity, high yield of the polyketone and high relative molecular mass of the synthesized polyketone; under the condition of the same use level of the main catalyst palladium acetate, the addition of the 4, 4'-dicarboxylic acid carbethoxyl group-2, 2'- dipyridyl can not only improve the activity of the catalyst by 1 to 3 times, but also improve the relative molecular mass of the polyketone by 1 to 2 times.

Description

Catalyst for the copolymerization of carbon monoxide and styrene to polyketones technical field The invention relates to a catalyst for synthesizing polyketones, in particular to a catalyst for preparing polyketones by copolymerizing carbon monoxide and styrene with 4,4'-dicarboxylate-2,2'-bipyridine. Background technique Polyketone is a linear and strictly alternating copolymer prepared by the copolymerization reaction of carbon monoxide (CO) and α-olefin. It has good mechanical properties, solvent resistance, and non-toxic properties. The raw material CO comes from a wide range of sources, reducing the cost compared to most materials synthesized from petroleum. More importantly, the carbonyl group on the main chain of polyketone endows it with unique photodegradation or biodegradation properties. It can slowly degrade into small molecules such as alkenes and CO2, which is of great significance in environmental protection and medical health. In addition, the carbonyl gro...

AI Technical Summary

Problems solved by technology

The currently used ligand is 2,2'-bipyridine. This catalytic system is used in the process of copolymerization of carbon monoxide and styrene to form polyketones. The catalytic activity and relative molecular weight are not high.

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