6533b86efe1ef96bd12cc77a

RESEARCH PRODUCT

Polymerization with heterogeneous metalorganic catalysts. VI. Differences in polymerization activity of α-olefins and some kinetic results on butene-1 polymerization

W. LintzH. SchneckoWerner Kern

subject

Anionic addition polymerizationChain-growth polymerizationBulk polymerizationPolymerizationChemistryPolymer chemistryGeneral EngineeringCationic polymerizationPrecipitation polymerizationCoordination polymerizationPhotochemistryIonic polymerization

description

Relative changes in polymerization activity of ethylene, propylene, and butene-1 in Ziegler-Natta polymerization were compared by use of TiCl3 samples contaminated with O2 and H2O to various extents. Catalyst depletion varied for the three monomers which supported the existence of different active centers. In butene-1 polymerizations with the system Al(C2H5)2Cl–TiCl3, the formation of active centers involves an irreversible and a reversible (adsorption) reaction, the former pertaining to the formation of Al(C2H5)Cl2 and dependent upon the purity of the TiCl3. The kinetic treatment of the rate curves suggests a mixed order of catalyst deactivation and again points to the importance of Al(C2H5)Cl2.

yearjournalcountryeditionlanguage
1967-01-01Journal of Polymer Science Part A-1: Polymer Chemistry
https://doi.org/10.1002/pol.1967.150050119