ETHYLENE POLYMERIZATIONS WITH NOVEL TANTALUM(V) AMINOPYRIDINATO COMPLEX MAO SYSTEMS/

Authors
HAKALA K LOFGREN B POLAMO M LESKELA M
Citation
K. Hakala et al., ETHYLENE POLYMERIZATIONS WITH NOVEL TANTALUM(V) AMINOPYRIDINATO COMPLEX MAO SYSTEMS/, Macromolecular rapid communications, 18(8), 1997, pp. 635-638
Citations number
13
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular rapid communications → ACNP
ISSN journal
10221336
Volume
18
Issue
8
Year of publication
1997
Pages
635 - 638
Database
ISI
SICI code
1022-1336(1997)18:8<635:EPWNTA>2.0.ZU;2-M
Abstract
The use of two kinds of tantalum(V) aminopyridinato complexes, bis(2-b enzylamino-pyridinato)trichlorotantalum(V) and trichlorobis [2,6-di(ph enylamino)pyridinato-N,N']-tantalum(V), activated by methylaluminoxane was studied in polymerization of ethylene. The activities of these ho mogeneous catalyst systems are comparable lo those of metallocenes. Th e weight-average molecular weights ((M) over bar(W)) of the produced p olyethylenes are between 60000 and 200000 and (M) over bar(W)/(M) over bar(n) approximate to 2.