EPDM Synthesis by the Ziegler Catalyst Cp*TiMe3/B(C6F5)3
β Scribed by Neda Bavarian; Michael C. Baird; J. Scott Parent
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 91 KB
- Volume
- 202
- Category
- Article
- ISSN
- 1022-1352
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π SIMILAR VOLUMES
Ethylene polymerization by zirconocene-B(C 6 F 5 ) 3 catalysts with various aluminum compounds has been investigated. It is found that the catalytic activity depended on zirconocenes used, and especially on the type of aluminum compounds. For Et(H 4 Ind) 2 ZrCl 2 (H 4 Ind : tetrahydroindenyl), the a
Polymerization of propylene by Cp\*TiMe 2 (-Me)B(C 6 F 5 ) 3 in the presence of increasing partial pressures of H 2 results in ever decreasing polymer molecular weights, which is consistent with the hydrogenolytic chain transfer processes involving metal-polymer bonds in many heterogeneous and homog
N-pyrrolyllithium (1) adds to B(C 6 F 5 ) 3 to yield [(C 4 H 4 N)B(C 6 F 5 ) 3 ]Li (3). The corresponding monoetherate (3β’OEt 2 ) was characterized by X-ray diffraction and shows an Ξ· 5 coordination of the pyrrolyl moiety to the lithium cation. Treatment of 3 with HCl in ether leads to H + addition
## In memory of Erhard Kurras Certain ion pairs [Cp' 2 MMe] + [MeB(C 6 F 5 ) 3 ] Γ (M = Ti, Zr; Cp' = substituted or unsubstituted h 5 -cyclopentadienyl), formed by the formal abstraction of methyl anions from dimethyl complexes [Cp' 2 MMe 2 ] of the Group 14 transition metals by the strong Lewis