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
Living-Like Polymerization of Propylene with Mixed Metallocene Catalyst Systems
β Scribed by Yoshifumi Fukui; Masahide Murata
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 94 KB
- Volume
- 202
- Category
- Article
- ISSN
- 1022-1352
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π SIMILAR VOLUMES
Propylene was polymerized with metallocene and Ziegler-Natta mixedcatalytic systems to obtain reactor blends of metallocene and Ziegler-Natta-derived propylene homopolymers. The two catalytic systems are able to act jointly, providing individual polymers with different melting and crystallization te
Propylene polymerization was investigated with a sequential addition of Ziegler-Natta and metallocene catalysts. From the fact that the molecular weights of polypropylene (PP) produced with Ziegler-Natta and with metallocene catalysts differ, it was possible to control the molecular weight distribut