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

Meier, G.B. and Weickert, G. and Swaaij van, W.P.M. (2001) Comparison of gas- and liquid-phase polymerization of propylene with heterogeneous metallocene catalyst. Journal of Applied Polymer Science, 81 (5). pp. 1193-1206. ISSN 0021-8995

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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.
Item Type:	Article
Copyright:	© 2001 Wiley InterScience
Faculty:	Science and Technology (TNW)
Research Group:	Thermo-Chemical Conversion of Biomass (TCCB)
Link to this item:	http://purl.utwente.nl/publications/71634
Official URL:	http://dx.doi.org/10.1002/app.1542
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