Effect of polymerization time on the molecular weight and molecular weight distribution of polypropylene
Copyright policy )Effect of polymerization time on the molecular weight and molecular weight distribution of polypropylene
AbstractThe influence of the polymerization time on the molecular weight (Mw, Mn, Mp, and Mz), molecular weight distribution (MWD) and relative MWD of polypropylene (PP) in the propylene polymerization with a Mg(OEt)2/DIBP/TiCl4/PTES/AlEt3 catalyst system in the slurry phase has been studied by using gel permeation chromatography (GPC), where Mg(OEt)2, DIBP (diisobutyl phthalate), TiCl4, PTES (phenyl triethoxy silane), and triethyl aluminum (TEA) are support, internal donor, catalyst, external donor, and cocatalyst, respectively. It has been found that the increase of the polymerization time increases the molecular weight and MWD of PP. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 368–371, 2006
- University of Twente Netherlands
Ziegler-Natta Polymerization, METIS-230186, GPC, IR-61493, PP
Ziegler-Natta Polymerization, METIS-230186, GPC, IR-61493, PP
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