The stereoregulating effects of Me benzoate (I) [93-58-3] in TiCl4-MgCl2-Et3Al Ziegler catalysts for polymn. of C3H6 [115-07-1] could be attributed to slow ligand exchangers for the nonstereospecific sites and to the deactivation of the nonstereospecific sites in the presence of I. The carbon atoms of I (as a fourth component in the catalyst) were incorporated into the polymer via alkylation of I by the Ti-C bond of the active catalytic sites. The polymn. kinetics was discussed.
Isotactic Polymerization of Propene With Heterogeneous Catalytic-systems - A Partial Tentative Rationalization of the Behavior of Some 3rd Components
OLIVA, Leone;
1986-01-01
Abstract
The stereoregulating effects of Me benzoate (I) [93-58-3] in TiCl4-MgCl2-Et3Al Ziegler catalysts for polymn. of C3H6 [115-07-1] could be attributed to slow ligand exchangers for the nonstereospecific sites and to the deactivation of the nonstereospecific sites in the presence of I. The carbon atoms of I (as a fourth component in the catalyst) were incorporated into the polymer via alkylation of I by the Ti-C bond of the active catalytic sites. The polymn. kinetics was discussed.File in questo prodotto:
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