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Study of Ethylene‐Propylene‐1‐Hexene Co‐ and Terpolymers Obtained with Homogeneous and Supported Metallocene Catalysts
Author(s) -
Galland Griselda Barrera,
dos Santos João Henrique Zimnoch,
Dall'Agnol Maiara,
Bisatto Rubens
Publication year - 2006
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200651307
Subject(s) - methylaluminoxane , metallocene , 1 hexene , ethylene , polymer chemistry , catalysis , homogeneous , materials science , elastomer , hexene , chemistry , polymerization , organic chemistry , polymer , composite material , mathematics , combinatorics
Ethylene‐propylene‐1‐hexene terpolymers were obtained using three metallocenic systems: Cp 2 ZrCl 2 , Cp 2 ZrCl 2 directly supported on silica (Cp 2 ZrCl 2 /SiO 2 ) and Cp 2 ZrCl 2 supported on MAO (methylaluminoxane)‐modified silica (Cp 2 ZrCl 2 /MAO/SiO 2 ). The results were compared with those obtained with rac ‐Et[Ind] 2 ZrCl 2 . The best activities were obtained with the Cp 2 ZrCl 2 in the homogeneous form, but the system Cp 2 ZrCl 2 /MAO/SiO 2 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.