Water-soluble [P,O]Ni(II) catalysts enable the direct catalytic nonalternating copolymerization of fundamental comonomers ethylene and carbon monoxide (CO) in water as an environmentally friendly reaction medium. This yields stable aqueous dispersions of high molecular weight polyethylene containing ∼1 mol % of largely isolated in-chain keto groups in the form of particles with sizes between 100 nm and 1 μm. The intermediate species of chain growth resulting from incorporation of polar comonomers are amenable to specific chain termination pathways in conjunction with water.

中文翻译：

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乙烯和一氧化碳在水中催化共聚得到的酮基聚乙烯水分散体


水溶性[P,O]Ni(II)催化剂能够在水作为环境友好的反应介质中直接催化非交替共聚基本共聚单体乙烯和一氧化碳(CO)。这产生了高分子量聚乙烯的稳定水分散体，其中含有约 1 mol% 的大量孤立的链内酮基，其颗粒尺寸在 100 nm 至 1 μm 之间。由极性共聚单体的掺入产生的链增长的中间物质适合于与水结合的特定链终止途径。