Polymerization of Propylene by Mixed Ziegler-Natta and Metallocene Catalysts

Anatoli Lisovskii, Michael Shuster, Michael Gishvoliner, Gershon Lidor, Moris S. Eisen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The polymerization of propylene using a mixture of racemic metallocenes and Ziegler-Natta catalysts was investigated. The polypropylene was obtained as a mixture of a fine powder and beads, with the powder being absorbed partially on the beads. The relative amount of the powder can be controlled by the concentration of the metallocene. The compatibility between the components of the mixed catalytic systems and the effect of the components on the rate of polymerization and on the properties of the new polymers were studied. The metallocene system dramatically affects the melt viscosity, isotacticity and molecular weight of the polymers. The two catalytic systems are able to act jointly, producing different polymers, for which separate melting and crystallization temperatures are obtained.

Original languageEnglish
Pages (from-to)401-408
Number of pages8
JournalApplied Organometallic Chemistry
Issue number6
StatePublished - Jun 1998
Externally publishedYes


  • Catalysis
  • Metallocene
  • Polypropylene
  • Ziegler-Natta
  • α-Olefins


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