Alternating copolymerization of carbon monoxide and vinyl arenes using [N,N] bidentate palladium catalysts

Authors：Cheung, Chi Shing; Shi, Xinbo; Pei, Lixia; Du, Cheng; Gao, Heng; Qiu, Zonglin; Gao, Haiyang^*

Source：JOURNAL OF POLYMER SCIENCE, 2022, 60(9): 1448-1467.

DOI：10.1002/pol.20210802

• alternating copolymer
• carbon monoxide
• copolymerization
• palladium catalyst
• polyketone
• vinyl arene

The alternating copolymers of carbon monoxide (CO) and vinyl arene monomers, namely aromatic polyketones, are a family of attractive engineering plastic. In the catalytic synthesis of this kind of polymeric materials, [N,N] bidentate palladium catalysts represent the most successful catalytic systems. In this review, we introduce the present status of polyketone synthesis, with a focus on the aromatic polyketones made from vinyl arene and CO. We also address the palladium-catalyzed CO/vinyl arene alternating copolymerization mechanism. A variety of [N,N] bidentate palladium catalysts bearing 2,2 '-bipyridine, 1,10-phenanthroline, alpha-diimine, and pyridine-imine ligands are surveyed for CO/vinyl arene copolymerization. The effects of vinyl arene monomer, counteranion, and solvent on copolymerization are also discussed. The copolymerization stereochemistry including chain end-control and enantiomorphic site control mechanisms is introduced. This review aims to promote the design of [N,N] bidentate palladium catalysts for CO/vinyl arene copolymerization for the development of high-performance aromatic polyketones.

• Institution
  中国科学院; 中山大学