CHAIN PROPAGATION RATE CONSTANTS FOR GAS-PHASE POLYMERIZATION OF PROPENE AND 1-BUTENE WITH ZIEGLER-NATTA CATALYSTS

Authors
OLIVA L DISERIO M PEDUTO N SANTACESARIA E
Citation
L. Oliva et al., CHAIN PROPAGATION RATE CONSTANTS FOR GAS-PHASE POLYMERIZATION OF PROPENE AND 1-BUTENE WITH ZIEGLER-NATTA CATALYSTS, Macromolecular chemistry and physics, 195(1), 1994, pp. 211-216
Citations number
8
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular chemistry and physics → ACNP
ISSN journal
10221352
Volume
195
Issue
1
Year of publication
1994
Pages
211 - 216
Database
ISI
SICI code
1022-1352(1994)195:1<211:CPRCFG>2.0.ZU;2-Z
Abstract
C-13 NMR analysis of propene/1-butene block copolymers obtained by gas -phase polymerization with Ziegler-Natta catalysts allows the determin ation of the propagation mte constants for the homopolymerization of t he two monomers. They are very similar for the Solvay type catalyst de lta-TiCl3/AlMe3 and the supported catalyst TiCl4/MgCl2/Phthalate/AlMe3 . The constant of propene polymerization is three times higher than th at of 1-butene polymerization. The high value of the constant found fo r propene polymerization is in agreement with the literature value det ermined by the stopped flow polymerization method.