Results 141 to 150 of about 360,310 (205)

Chitosan microsphere-supported catalysts: design, synthesis and optimization for ethylene polymerization.

open access: yesMater Adv
Dorresteijn JM   +9 more
europepmc   +1 more source

“Oscillating” Metallocene Catalysts: How Do They Oscillate?

open access: yesAngewandte Chemie International Edition, 2002
Based on the results of a series of propylene polymns. using oscillating metallocene catalysts of type [(2-Ar-indenyl)2ZrCl2] (Ar = C6H5 or 3,5-(t-Bu)2-4-MeO-C6H2) with various cocatalysts (MAO, TIBAl), the oscillating behavior of the zirconocenes is discussed with respect to the rac/meso stereochem. outcome of the obtained polypropylenes.
BUSICO, VINCENZO   +5 more
openaire   +6 more sources

Polymerization of propene by post‐metallocene catalysts

open access: yesMacromolecular Symposia, 2004
AbstractIn the last few years several non‐metallocene catalysts have been disclosed as efficient catalysts for the stereospecific polymerization of propene.In this paper we summarize some recent literature data and some new results concerning the stereochemical mechanism of propene polymerization promoted by late transition metal systems and group 4 ...
LAMBERTI, Marina   +4 more
openaire   +2 more sources
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