Due to the high melting point and poor solubility of ethylene/carbon monoxide alternating copolymerization products

there are great difficulties in material processing and application. The catalyst design can realize the non-alternating copolymerization of ethylene/carbon monoxide

reduce the carbonyl content in the copolymer and improve the processability of the material. This paper reviews the progress of neutral transition metal catalysts

cationic transition metal catalysts and metal carbonyl compounds in the non-alternating copolymerization of ethylene and carbon monoxide. Finally

the research of new photodegradable plastics is prospected.