POLYMERIZATION OF 1-HEXENE CATALYZED BY BIS(CYCLOPENTADIENYL)ZIRCONIUM DICHLORIDE METHYLALUMINOXANE - EFFECT OF TEMPERATURE ON THE MOLECULAR-WEIGHT AND THE MICROSTRUCTURE OF POLY(1-HEXENE)

Authors
FRAUENRATH H KEUL H HOCKER H
Citation
H. Frauenrath et al., POLYMERIZATION OF 1-HEXENE CATALYZED BY BIS(CYCLOPENTADIENYL)ZIRCONIUM DICHLORIDE METHYLALUMINOXANE - EFFECT OF TEMPERATURE ON THE MOLECULAR-WEIGHT AND THE MICROSTRUCTURE OF POLY(1-HEXENE), Macromolecular rapid communications, 19(7), 1998, pp. 391-395
Citations number
16
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular rapid communications → ACNP
ISSN journal
10221336
Volume
19
Issue
7
Year of publication
1998
Pages
391 - 395
Database
ISI
SICI code
1022-1336(1998)19:7<391:PO1CBB>2.0.ZU;2-5
Abstract
Polymerization of 1-hexene catalyzed with bis(cyclopentadienyl)zirconi um dichloride/methyl-aluminoxane revealed increasing molecular weight with decreasing polymerization temperature. The Arrhenius plot (Ig (M) over bar(n) vs. 1/T) shows a sigmoidal curve. These results were inte rpreted in the sense of a change in the nature of the active species w ith temperature. In addition it was observed that with decreasing poly merization temperature the concentration of isotactic sequences increa ses.