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Unraveling the mechanism of polymerisation with the Phillips catalyst
journal contribution
posted on 2023-05-17, 04:42 authored by McGuinness, DS, Noel DaviesNoel Davies, Henry HorneHenry Horne, Ivanov, IThe mechanism of polymer chain growth at the Phillips catalyst has been studied, with the three prevailing mechanistic proposals, the Cosee−Arlman, Green−Rooney, and metallacycle mechanisms, considered. Through analysis of low molecular weight oligomers/polymers formed during ethylene/á-olefin copolymerization with labeled monomers, it is shown that the isotopomer distribution is inconsistent with a metallacycle mechanism. Further analysis of polymer formed by copolymerization of labeled ethylene was used to rule out a Green−Rooney mechanism. The results support the notion of chain growth via a Cossee−Arlman process.
History
Publication title
OrganometallicsVolume
29Issue
22Pagination
6111-6116ISSN
0276-7333Department/School
School of Natural SciencesPublisher
Amer Chemical SocPlace of publication
1155 16Th St, Nw, Washington, USA, Dc, 20036Rights statement
Copyright © 2010 American Chemical SocietyRepository Status
- Restricted