Study of Ethylene-Propylene-1-Hexene Co- and Terpolymers Obtained with Homogeneous and Supported Metallocene Catalysts

Study of Ethylene-Propylene-1-Hexene Co- and Terpolymers Obtained with Homogeneous and Supported Metallocene Catalysts

Ethylene‐propylene‐1‐hexene terpolymers were obtained using three metallocenic systems: Cp2ZrCl2, Cp2ZrCl2 directly supported on silica (Cp2ZrCl2/SiO2) and Cp2ZrCl2 supported on MAO (methylaluminoxane)‐modified silica (Cp2ZrCl2/MAO/SiO2). The results were compared with those obtained with rac‐Et[Ind...

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Veröffentlicht in:Macromolecular symposia 2006-12, Vol.245-246 (1), p.42-50
Hauptverfasser: Galland, Griselda Barrera, dos Santos, João Henrique Zimnoch, Dall'Agnol, Maiara, Bisatto, Rubens
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Catalysis
Catalysts
Cobalt
Copolymerization
Elastomers
Exact sciences and technology
mechanical properties
metallocene catalysts
Metallocenes
NMR
Organic polymers
Physicochemistry of polymers
polyolefins
Preparation, kinetics, thermodynamics, mechanism and catalysts
Silicon dioxide
structure-property relations
Terpolymers
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Zusammenfassung:Ethylene‐propylene‐1‐hexene terpolymers were obtained using three metallocenic systems: Cp2ZrCl2, Cp2ZrCl2 directly supported on silica (Cp2ZrCl2/SiO2) and Cp2ZrCl2 supported on MAO (methylaluminoxane)‐modified silica (Cp2ZrCl2/MAO/SiO2). The results were compared with those obtained with rac‐Et[Ind]2ZrCl2. The best activities were obtained with the Cp2ZrCl2 in the homogeneous form, but the system Cp2ZrCl2/MAO/SiO2 afforded also good results. Those systems showed to be able to incorporate enough comonomers, in a randomic way, to give terpolymers with an elastomeric behaviour.
ISSN:1022-1360
1521-3900
DOI:10.1002/masy.200651307