The stereochemistry of propene polyinsertion catalyzed by a highly isospecific MgCl2-supported Ziegler-Natta system was investigated by means of the gas chromatographic/mass spectrometric (GC-MS) characterization of the saturated oligomers (hydrooligomers) formed in the presence of H2 at high pressure (as a chain transfer agent). It was shown that the hydrooligomer distribution is a true catalyst “fingerprint”, from which, in case of systems with (prevailingly) a single type of active centres, both the regio- and the stereospecificity of polyinsertion can be quantitatively evaluated.
ZIEGLER-NATTA OLIGOMERIZATION OF 1-ALKENES - A CATALYST FINGERPRINT .1. HYDROOLIGOMERIZATION OF PROPENE IN THE PRESENCE OF A HIGHLY ISOSPECIFIC MGCL2-SUPPORTED CATALYST / Busico, Vincenzo; Cipullo, Roberta; Corradini, P.. - In: DIE MAKROMOLEKULARE CHEMIE. - ISSN 0025-116X. - ELETTRONICO. - 194:(1993), pp. 1079-1093.
ZIEGLER-NATTA OLIGOMERIZATION OF 1-ALKENES - A CATALYST FINGERPRINT .1. HYDROOLIGOMERIZATION OF PROPENE IN THE PRESENCE OF A HIGHLY ISOSPECIFIC MGCL2-SUPPORTED CATALYST
BUSICO, VINCENZO;CIPULLO, ROBERTA;
1993
Abstract
The stereochemistry of propene polyinsertion catalyzed by a highly isospecific MgCl2-supported Ziegler-Natta system was investigated by means of the gas chromatographic/mass spectrometric (GC-MS) characterization of the saturated oligomers (hydrooligomers) formed in the presence of H2 at high pressure (as a chain transfer agent). It was shown that the hydrooligomer distribution is a true catalyst “fingerprint”, from which, in case of systems with (prevailingly) a single type of active centres, both the regio- and the stereospecificity of polyinsertion can be quantitatively evaluated.| File | Dimensione | Formato | |
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