烯烃与一氧化碳共聚制备聚酮:催化剂创新与聚合物链结构调控OA

Polyketone(POK)is an engineering plastic synthesized through the polymerization of carbon monoxide and olefins,which combines excellent comprehensive properties and environmentally friendly characteristics.This article systematically reviews the research progress in its catalytic synthesis,focusing on two core directions:catalyst design and polymer structure regulation.It pro-vides a detailed overview of research findings on palladium-and nickel-based catalytic systems,with an emphasis on how ligand engi-neering enables precise control over the sequence structure of polymer chains(e.g.,alternating/non-alternating arrangements).The re-view also discusses strategies for expanding from CO/ethylene copolymerization to terpolymerization involving α-olefins or polar mono-mers to optimize material performance.Furthermore,it summarizes research breakthroughs in the field,including improvements in catalytic efficiency,insights into reaction mechanisms,and the development of green processes.Finally,the article outlines future de-velopment directions,such as innovations in low-cost metal catalysts and precise regulation of polymer structures,aiming to provide theoretical reference and practical guidance for the research,development,and industrialization of polyketone materials in China.