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

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  • Andrew L. Kocen

    (University of Houston)

  • Maurice Brookhart

    (University of Houston)

  • Olafs Daugulis

    (University of Houston)

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.

Suggested Citation

  • Andrew L. Kocen & Maurice Brookhart & Olafs Daugulis, 2019. "A highly active Ni(II)-triadamantylphosphine catalyst for ultrahigh-molecular-weight polyethylene synthesis," Nature Communications, Nature, vol. 10(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08309-8
    DOI: 10.1038/s41467-019-08309-8
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    Cited by:

    1. Gang Ji & Zhou Chen & Xiao-Yan Wang & Xiao-Shan Ning & Chong-Jie Xu & Xing-Min Zhang & Wen-Jie Tao & Jun-Fang Li & Yanshan Gao & Qi Shen & Xiu-Li Sun & Hao-Yang Wang & Jun-Bo Zhao & Bo Zhang & Yin-Lon, 2021. "Direct copolymerization of ethylene with protic comonomers enabled by multinuclear Ni catalysts," Nature Communications, Nature, vol. 12(1), pages 1-9, December.

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