Publikation:

Controlled Cobalt-Mediated Free-Radical Co- and Terpolymerization of Carbon Monoxide

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2022

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http://nbn-resolving.de/urn:nbn:de:bsz:352-2-9rnbbep4lw1c8
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https://doi.org/10.1021/jacs.2c07200
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Journal of the American Chemical Society. American Chemical Society. 2022, 144(34), pp. 15879-15884. ISSN 0002-7863. eISSN 1520-5126. Available under: doi: 10.1021/jacs.2c07200

Zusammenfassung

While controlled free-radical polymerizations are established for a vast range of vinyl monomers, they have not been reported for carbon monoxide, although it is a unique monomer that forms in-chain keto groups which can promote, for example, desirable photo-degradability in polyethylenes. We report organometallic-mediated radical copolymerization of carbon monoxide with ethylene initiated by an organocobaltIII compound to keto-modified polyethylenes with up to 15 mol % ketone repeat units. Terpolymerization with 2-methylene-1,3-dioxepane affords polyethylenes with in-chain ester and keto groups. Compared to ethylene homopolymerization, the controlled character of the copolymerization is strongly enhanced by the Lewis base function of carbon monoxide, which suppresses multiple unfavorable termination pathways.

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540 Chemie

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ISO 690FUCHS, Amelie S., Stefan MECKING, 2022. Controlled Cobalt-Mediated Free-Radical Co- and Terpolymerization of Carbon Monoxide. In: Journal of the American Chemical Society. American Chemical Society. 2022, 144(34), pp. 15879-15884. ISSN 0002-7863. eISSN 1520-5126. Available under: doi: 10.1021/jacs.2c07200
BibTex
@article{Fuchs2022-08-31Contr-58333,
  year={2022},
  doi={10.1021/jacs.2c07200},
  title={Controlled Cobalt-Mediated Free-Radical Co- and Terpolymerization of Carbon Monoxide},
  number={34},
  volume={144},
  issn={0002-7863},
  journal={Journal of the American Chemical Society},
  pages={15879--15884},
  author={Fuchs, Amelie S. and Mecking, Stefan}
}
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