Reactivity of secondary metal-alkyls in catalytic propene polymerization: how dormant are "dormant chains"?
J Am Chem Soc
; 127(6): 1608-9, 2005 Feb 16.
Article
em En
| MEDLINE
| ID: mdl-15700973
ABSTRACT
In this communication, we report on the direct measurement of dormant chain concentration and of the relative reactivity of authentic primary and secondary Zr-polymeryls toward propene, ethene, and H2 under practical conditions for a new highly regio- and stereoselective postmetallocene polymerization catalyst with controlled kinetic behavior. The results, in particular, confirm the poor reactivity toward propene of secondary M-polymeryls and the possible accumulation of dormant chains in propene homopolymerization.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article