Polymerization of propylene by metallocene and Ziegler-Natta mixed catalytic systems. Study of polypropylene properties

Autor: Gershon Lidor, Anatoli Lisovskii, Moris S. Eisen, Michael Shuster, Michael Gishvoliner
Rok vydání: 1998
Předmět:
Zdroj: Journal of Polymer Science Part A: Polymer Chemistry. 36:3063-3072
ISSN: 1099-0518
0887-624X
DOI: 10.1002/(sici)1099-0518(199812)36:17<3063::aid-pola7>3.0.co;2-2
Popis: Propylene was polymerized with metallocene and Ziegler-Natta mixed-catalytic 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 temperatures. Compatibility between the components of the mixed-catalytic systems and the influence of the components on the polymerization process and on the properties of the reactor blends were studied. Thermal, mechanical, viscoelastic, rheological, and optical properties of the blends were tested and compared with those of conventional polypropylene grades.
Databáze: OpenAIRE