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Propylene Polymerization using Dimethylsilanediylbis[2-methyl-4-(4-tert-butylphenyl)-1-indenyl] Zirconium Dichloride/Methylaluminoxane Catalyst System Immobilized on Sylopol 643 and Sylopol 633

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Abstract

Two different commercial silica materials including Sylopol 643 and Sylopol 633 were used as support materials for the preparation of heterogenous dimethylsilanediylbis[2-methyl-4-(4-tert-butylphenyl)-1-indenyl] zirconium dichloride catalyst. The support materials were calcinated at two different temperatures under heating rate of 2 °C/min before treatment with methylaluminoxane (MAO). The effects of molecular hydrogen and Al/Zr ratio on polymer properties were considered. The catalyst system derived from Sylopol 643 exhibits higher catalyst activity than that of Sylopol 633. Uniform immobilization of MAO is achieved using Sylopol 643. Polymer particle growth characteristics and particle distribution depends strongly on the silica support used. Sylopol 633 produced higher fine level than Sylopol 643.

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Acknowledgements

National Petrochemical Company-Research and Technology Co. of Iran is acknowledged for financial support of this work through the Grant #870229014. We wish to thank for a grant from University of Tehran.

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Authors and Affiliations

  1. School of Chemistry, College of Science, University of Tehran, Tehran, Iran

    Fatemeh Shahsavari & Alireza Abbasi

  2. National Petrochemical Company, Petrochemical Research and Technology Company, P.O. Box 1435884711, Tehran, Iran

    Fatemeh Shahsavari, Seyed Mehdi Ghafelebashi & Majid Daftari-Besheli

  3. Department of Chemistry, Islamic Azad University, Buinzahra Branch, P.O. Box 14115-175, Buinzahra, Iran

    Majid Ghazanfarpour-Darjani

Authors
  1. Fatemeh Shahsavari
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  2. Alireza Abbasi
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  3. Majid Ghazanfarpour-Darjani
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  4. Seyed Mehdi Ghafelebashi
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  5. Majid Daftari-Besheli
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Correspondence to Alireza Abbasi or Majid Ghazanfarpour-Darjani.

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Shahsavari, F., Abbasi, A., Ghazanfarpour-Darjani, M. et al. Propylene Polymerization using Dimethylsilanediylbis[2-methyl-4-(4-tert-butylphenyl)-1-indenyl] Zirconium Dichloride/Methylaluminoxane Catalyst System Immobilized on Sylopol 643 and Sylopol 633. J Inorg Organomet Polym 27, 835–841 (2017). https://doi.org/10.1007/s10904-017-0529-5

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  • DOI: https://doi.org/10.1007/s10904-017-0529-5

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