A highly active Ni(II)-triadamantylphosphine catalyst for ultrahigh-molecular-weight polyethylene synthesis

Andrew L. Kocen, Maurice Brookhart () and Olafs Daugulis ()
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Andrew L. Kocen: University of Houston
Maurice Brookhart: University of Houston
Olafs Daugulis: University of Houston

Nature Communications, 2019, vol. 10, issue 1, 1-6

Abstract: Abstract Here we report that the tri-1-adamantylphosphine-nickel complex [Ad3PNiBr3]-[Ad3PH]+ upon activation with an alkylaluminoxane catalyzes the polymerization of ethylene to ultrahigh-molecular-weight, nearly linear polyethylene (Mn up to 1.68 × 106 g mol−1) with initial activities reaching 3.7 million turnovers per h−1 at 10 °C. Copolymerizations of ethylene with α-olefins such as 1-hexene and 1-octadecene, as well as tert-butyldimethyl(dec-9-en-1-yloxy)silane give the corresponding copolymers with no decrease in activity.

Date: 2019
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DOI: 10.1038/s41467-019-08309-8

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