Catalytic Polymerization of Liquid Propylene: Effect of Low-Yield Hexene Prepolymerization on Kinetics and Morphology

Pimplapure, Makarand S. and Weickert, Günter (2005) Catalytic Polymerization of Liquid Propylene: Effect of Low-Yield Hexene Prepolymerization on Kinetics and Morphology. Macromolecular Rapid Communications, 26 (16). pp. 1294-1298. ISSN 1022-1336

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Abstract:	A Ziegler-Natta-catalyst was used in ultra low-yield slurry prepolymerization followed by liquid propylene (main) polymerizations. Complete catalyst disintegration down to 1.5-2 µm particle size is observed at prepolymerization yields of 10 g per g cat. The initial (main) polymerization rate increased up to 55% and the final average particle diameter can be controlled between 50 and 1 500 µm at main polymerization yields of 20 kg PP per g cat · hr-1. Tension generation within the particle and the absence of a polymer layer explains these results.
Item Type:	Article
Copyright:	© 2005 WILEY-VCH
Research Group:	Industrial Polymerization Processes (IPP/HT)
Link to this item:	http://purl.utwente.nl/publications/58292
Official URL:	http://dx.doi.org/10.1002/marc.200500240
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