Switching the mechanism of polymerisation from vinyl addition to metathesis using single-site catalysts

Authors
Manivannan, R Sundararajan, G Kaminsky, W
Citation
R. Manivannan et al., Switching the mechanism of polymerisation from vinyl addition to metathesis using single-site catalysts, MACRO RAPID, 21(14), 2000, pp. 968-972
Citations number
12
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR RAPID COMMUNICATIONS
ISSN journal
10221336 → ACNP
Volume
21
Issue
14
Year of publication
2000
Pages
968 - 972
Database
ISI
SICI code
1022-1336(20000928)21:14<968:STMOPF>2.0.ZU;2-1
Abstract
Titanium/methylaluminoxane-based catalyst systems polymerising norbornene b y vinyl addition were modified to initiate ring-opening metathesis polymeri sation by interrupting the course of polymerisation with phenylacetylene. T he products showed nearly 30% ring-opened structures according to their H-1 NMR spectra. The change in mechanism of polymerisation after the addition of the reactivity transfer reagent is seen from the kinetic data.