1999 | OriginalPaper | Buchkapitel
New insight into propene polymerization promoted by heterogeneous Ziegler-Natta catalysts
verfasst von : Vincenzo Busico, Roberta Cipullo, Guglielmo Monaco, Giovanni Talarico, Michele Vacatello, John C. Chadwick, Anna Laura Segre, Olof Sudmeijer
Erschienen in: Metalorganic Catalysts for Synthesis and Polymerization
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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The configurational analysis of polypropylenes made with coordination catalysts has received a tremendous impulse by the recent application of high-field 13C NMR techniques. In particular, unprecedented determinations of stereosequence distribution at heptad/nonad level have made more realistic and sophisticated models of chain propagation applicable for the first time in a statistically significant manner. In this presentation, the most recent applications to «high-yield» MgCl2-supported Ziegler-Natta catalysts are illustrated