Ethylene Polymerization Catalysis by Vanadium-based systems bearing sulfur-bridged calixarenes

Redshaw, C, Clowes, L, Hughes, DL, Elsegood, MRJ and Yamato, T (2011) Ethylene Polymerization Catalysis by Vanadium-based systems bearing sulfur-bridged calixarenes. Organometallics, 30 (21). 5620–5624.

Full text not available from this repository. (Request a copy)

Abstract

Calixarenes bridged by thia (-S-), sulfinyl (-SO-), or sulfonyl (-SO2-) linkers have been employed as ancillary ligands in vanadium-based ethylene polymerization and in the ring-opening polymerization of e-caprolactone. For ethylene polymerization, all pro-catalysts [PPh4][VOCl2(R-calix[4]areneH2)] (R = p-tert-butylthia (-S-) (1), sulfinyl (-SO-) (2), sulfonyl (-SO2-) (3)) were highly active, with the system bearing the sulfonyl (-SO2-)-bridged calixarene displaying enhanced activity. The molecular structures of pro-catalysts 2 and 3 are reported. Pro-catalysts 1–3 were inactive for the ROP of e-caprolactone.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
Related URLs:
Depositing User: Rachel Smith
Date Deposited: 21 Jul 2011 13:46
Last Modified: 05 Sep 2018 12:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/34030
DOI: 10.1021/om200402u

Actions (login required)

View Item