Bimetallic coordination insertion polymerization of unprotected polar monomers: Copolymerization of amino olefins and ethylene by dinickel bisphenoxyiminato catalysts

Madalyn R. Radlauer, Aya K. Buckley, Lawrence M. Henling, Theodor Agapie

Research output: Contribution to journalArticlepeer-review

120 Scopus citations

Abstract

Dinickel bisphenoxyiminato complexes based on highly substituted p- and m-terphenyl backbones were synthesized, and the corresponding atropisomers were isolated. In the presence of a phosphine scavenger, Ni(COD)2, the phosphine-ligated syn-dinickel complexes copolymerized α-olefins and ethylene in the presence of amines to afford 0.2-1.3% α-olefin incorporation and copolymerized amino olefins and ethylene with a similar range of incorporation (0.1-0.8%). The present rigid catalysts provide a bimetallic strategy for insertion polymerization of polar monomers without masking of the heteroatom group. The effects of the catalyst structure on the reactivity were studied by comparisons of the syn and anti atropisomers and the p- and m-terphenyl systems.

Original languageEnglish (US)
Pages (from-to)3784-3787
Number of pages4
JournalJournal of the American Chemical Society
Volume135
Issue number10
DOIs
StatePublished - Mar 13 2013

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