Oxidation state(s) of the active titanium species during polymerization ofstyrene to syndiotactic polystyrene catalyzed by Cp*TiMe3/B(C6F5)(3), Cp*TiMe3[Ph3C][B(C6F5)(4)], and Cp*TiCl2,3/MAO

Authors
Williams, EF Murray, MC Baird, MC
Citation
Ef. Williams et al., Oxidation state(s) of the active titanium species during polymerization ofstyrene to syndiotactic polystyrene catalyzed by Cp*TiMe3/B(C6F5)(3), Cp*TiMe3[Ph3C][B(C6F5)(4)], and Cp*TiCl2,3/MAO, MACROMOLEC, 33(2), 2000, pp. 261-268
Citations number
48
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULES
ISSN journal
00249297 → ACNP
Volume
33
Issue
2
Year of publication
2000
Pages
261 - 268
Database
ISI
SICI code
0024-9297(20000125)33:2<261:OSOTAT>2.0.ZU;2-M
Abstract
A combined NMR/EPR investigation of the catalyst systems Cp*TiMe3/B(C6F5)(3 ), Cp*TiMe3/ [Ph3C][B(C6F5)(4)], and Cp*TiCl2,3/MAO for the polymerization of styrene to syndiotactic polystyrene suggests that evidence for the invol vement of EPR-active titanium(III) species as catalysts is ambiguous.