HIGH-MOLECULAR-WEIGHT ATACTIC POLYPROPYLENE FROM METALLOCENE CATALYSTS .1. ME(2)SI(9-FLU)(2)ZRX(2) (X=CL, ME)

Authors
RESCONI L JONES RL RHEINGOLD AL YAP GPA
Citation
L. Resconi et al., HIGH-MOLECULAR-WEIGHT ATACTIC POLYPROPYLENE FROM METALLOCENE CATALYSTS .1. ME(2)SI(9-FLU)(2)ZRX(2) (X=CL, ME), Organometallics, 15(3), 1996, pp. 998-1005
Citations number
53
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Organometallics → ACNP
ISSN journal
02767333
Volume
15
Issue
3
Year of publication
1996
Pages
998 - 1005
Database
ISI
SICI code
0276-7333(1996)15:3<998:HAPFMC>2.0.ZU;2-9
Abstract
The synthesis and characterization of the C-2v symmetric (dimethylsila nediylbis(9-fluorenyl))zirconium dichloride (I) and (dimethylsilanediy lbis(9-fluorenyl))zirconium dimethyl (II) are reported. The crystal an d molecular structure of II has been solved. The catalyst system I/MAO and II/MAO (MAO = methylalumoxane) produce high-molecular-weight atac tic polypropylene at relatively high polymerization temperatures (<(M) over bar (w)> = (1-4) x 10(5) at 50 degrees C and Al/Zr = 1200) in goo d yields, providing a practical entry to this novel, elastomeric propy lene homopolymer.