Comparison of gas- and liquid-phase polymerization of propylene with heterogeneous metallocene catalyst

G.B. Meier, G. Weickert, Willibrordus Petrus Maria van Swaaij

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Abstract

Sorption measurements are executed to study the sorption behavior of propylene in a semicrystalline polymer. Decreasing values for the Flory-Huggins interaction parameter with increasing temperature are obtained. Large deviations are found, especially at higher temperatures, compared to data from the literature. Propylene is polymerized in liquid and gaseous propylenes with Me2Si[Ind]2ZrCl2/MAO/SiO2 as the metallocene catalyst. Lower relative reaction rates are found in the gas phase compared to the experiments in the liquid phase. The activation energies from the experiments in both phases are on the same order of magnitude. However, the literature versus experimental sorption data has a large effect on the determined kinetic parameters.
Original languageUndefined
Pages (from-to)1193-1206
Number of pages14
JournalJournal of applied polymer science
Volume81
Issue number5
DOIs
Publication statusPublished - 2001

Keywords

  • Metallocene catalyst
  • Propylene polymerization
  • polymerization kinetics
  • IR-71634
  • liquid phase
  • monomer sorption
  • METIS-203385
  • gas phase

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