Polymerization of Ethylene with Zirconocene Heterogenized on Spherical ZSM-5
AUTOR(ES)
Favero, Cristiano, Mignoni, Marcelo L., Souza, Roberto F. de, Bernardo-Gusmão, Katia
FONTE
J. Braz. Chem. Soc.
DATA DE PUBLICAÇÃO
2015-07
RESUMO
Homogeneous polymerization catalysts require large amounts of solvent and cannot control the polymer morphology. In order to solve this issue, a narrow-shaped spherical ZSM-5 zeolite was used in ethylene polymerization as a support for zirconocene (Cp2ZrCl2). Several heterogeneous catalytic precursors were prepared and used in ethylene polymerization reactions, which showed yields (between 980-8019 kg PE mol-1 h-1) and were efficient at promoting morphological replication of the support. So, a well-established protocol for slurry polymerization reaction was found, yielding well-defined polymer particles in an advantageous polymerization process.
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