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Polymerization of α‐Olefins Using Benzamidinate Zirconium Complexes Supported on Mesoporous Silica Materials
Author(s) -
Ray Biswajit,
Volkis Victoria,
Lisovskii Anatoly,
Eisen Moris S.
Publication year - 2003
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1560/0hew-nlnj-qdjx-vctj
Subject(s) - cationic polymerization , chemistry , polymerization , zirconium , mesoporous material , catalysis , polymer , chemical engineering , homogeneous , polymer chemistry , octahedron , inorganic chemistry , organic chemistry , crystal structure , physics , engineering , thermodynamics
The polymerization of ethylene and propylene were studied using an anchored dimethyl benzamidinate zirconium complex. As supports, mesoporous silicas MCM‐41 and HMS were utilized. These inorganic materials were reacted with methylalumoxane to serve as the cocatalyst and to avoid the deactivation of the active cationic complex. The reaction of the octahedral benzamidinate zirconium complex with the supported cocatalysts results in the formation of active catalytic systems for the polymerization of olefins. The polymer properties were found to depend on the nature of the supports. The activity of the heterogeneous catalysts and the polymer characteristics were compared with those obtained with the homogeneous catalyst.