CONTROL OF MOLECULAR-WEIGHT DISTRIBUTION OF ISOTACTIC POLYPROPYLENE OBTAINED BY A MGCL2-SUPPORTED TICL4 CATALYST

Authors
SHIONO T HAGIHARA H IKEDA T SOGA K
Citation
T. Shiono et al., CONTROL OF MOLECULAR-WEIGHT DISTRIBUTION OF ISOTACTIC POLYPROPYLENE OBTAINED BY A MGCL2-SUPPORTED TICL4 CATALYST, Polymer, 38(26), 1997, pp. 6409-6411
Citations number
8
Categorie Soggetti
Polymer Sciences
Journal title
Polymer → ACNP
ISSN journal
00323861
Volume
38
Issue
26
Year of publication
1997
Pages
6409 - 6411
Database
ISI
SICI code
0032-3861(1997)38:26<6409:COMDOI>2.0.ZU;2-2
Abstract
It is of great importance in propene polymerization to control molecul ar weight and molecular weight distribution as well as isotacticity. P ropene polymerization was carried out with an isospecific MgCl2/TiCl4- Cp2TiMe2 catalyst in the presence of various kinds of external Lewis b ases. It was found that the molecular weight distribution of the isota ctic polymer could be controlled while retaining high activity, high i sospecificity and high molecular weight only by changing the kind and/ or amount of the Lewis bases. (C) 1997 Elsevier Science Ltd.