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Ethylene polymerization catalyzed by metallocene supported on mesoporous materials

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Summary

In this work, different mesoporous materials were employed for the preparation of supported metallocene catalysts to be evaluated in ethylene polymerization and their performance was related to the chemistry of the materials surface used as support. The supports employed were MCM-41, SBA-15 and mesoporous TiO2. The performance of the prepared catalysts was compared with the homogeneous catalyst precursor system. Those mesoporous materials, as well as the prepared metallocene catalysts, were analyzed by infrared absorption spectrometry (FTIR). Polymers were also characterized by FTIR, for the determination of the number-average molecular weight, and by differential scanning calorimetry (DSC) to determine thermal characteristics of the produced polyethylene. Among the studied metallocene supported catalysts, the one based on the mesoporous support SBA-15 achieved the highest activities, almost as high as that observed for the homogeneous system.

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Authors and Affiliations

  1. Instituto de Macromoléculas/IMA, Universidade Federal do Rio de Janeiro - UFRJ, CP 68525, CEP 21941-590, Rio de Janeiro, RJ, Brazil

    Maria de Fátima V. Marques & Ordovaldo F. C. da Silva

  2. Departamento de Química IQ, Universidade Federal do Rio Grande do Norte - UFRN, CP 1662, CEP 59078-970, Natal, RN, Brazil

    Ana C. S. L. S. Coutinho & Antonio S. de Araujo

Authors
  1. Maria de Fátima V. Marques
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  2. Ordovaldo F. C. da Silva
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  3. Ana C. S. L. S. Coutinho
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  4. Antonio S. de Araujo
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Correspondence to Maria de Fátima V. Marques.

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de Fátima V. Marques, M., da Silva, O.F.C., Coutinho, A.C.S.L.S. et al. Ethylene polymerization catalyzed by metallocene supported on mesoporous materials . Polym. Bull. 61, 415–423 (2008). https://doi.org/10.1007/s00289-008-0965-z

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  • DOI: https://doi.org/10.1007/s00289-008-0965-z

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