Polymerization of propylene promoted by zirconium benzamidinates.
Dalton Trans
; 42(48): 16762-72, 2013 Dec 28.
Article
in En
| MEDLINE
| ID: mdl-24077612
ABSTRACT
New bis(N,N-trimethylsilylarylamidinate) zirconium dichloride complexes with various carbon substituents were prepared, and their solid as well as solution state structures were studied. In the polymerization of propylene, after activation by MAO, these catalysts provided two fractions. Ether soluble polymers were obtained at a low activity as sticky polymers with lower molecular weights, except with the o-OMe substituted complex. The solid fractions were composed of a highly isotactic polymer and a moderately syndiotactic polymer. An interesting linear correlation was found between the rates of the 2,1 and 3,1 insertions for the ether soluble fractions.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Dalton Trans
Journal subject:
QUIMICA
Year:
2013
Document type:
Article
Affiliation country: