Ethylene polymerization with catalyst systems based on metallocenes with varying steric hindrance and methylaluminoxane
β Scribed by Jun Tian; Baotong Huang
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 306 KB
- Volume
- 15
- Category
- Article
- ISSN
- 1022-1336
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β¦ Synopsis
Mt
Ethylene polymerization with catalyst systems based on metallocenes with . . .
π SIMILAR VOLUMES
Two kinds of the trisiloxane-bridged dinuclear titanium metallocene-type complexes were synthesized. They are monocyclopentadienyl and biscyclopentadienyl dinuclear titanocenes with trisiloxane bridges. The above complexes with modified methylaluminoxane (MMAO) cocatalyst initiate the polymerization
## Abstract Summary: This paper describes the use of pentafluorophenoxy alumoxane, an oligomeric compound containing ο£ΏAl(OC~6~F~5~)ο£ΏOο£Ώ units, as a cocatalyst for metallocene complexes in alkene polymerization reactions. Pentafluorophenoxy alumoxane is produced by two alternative routes. The first r
Copolymerization of ethylene with higher a-olefins, such as 4-methyl-1-pentene, 1-hexene, 1-octene and 1-dodecene, was carried out with both aspecific and isospecific bridged metallocene complexes, comparing the catalytic behaviour Ε½ . following metallocene supportation on methylalumoxane-pretreated