Polymerization of ethylene and its copolymerization with vinylcyclohexane using homogenous catalysts based on zirconocene-methylalumoxane systems
โ Scribed by L.A. Nekhaeva; V.L. Kleiner; B.A. Krentsel'; Ye.B. Uvarova; N.N. Korneev; I.M. Khrapova
- Book ID
- 116049743
- Publisher
- Elsevier Science
- Year
- 1990
- Weight
- 300 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0032-3950
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## Abstract New supported catalysts on the basis of cyclopentadienylindenylzirconium dichloride (CpIndZrCl~2~) anchored on silica with a trisiloxane spacer (ZATS) and a pentamethylene spacer (ZAPM) were prepared and used for ethylene polymerization with modified methylaluminoxane (MAO) as cocatalys
## Abstract Active oneโphase Tiโbased supported catalysts were prepared by interacting the activated silica gel (0.8 mmol OH groups/g) with R~x~AlCl~3โx~ (__x__ = 1โ3, Al/OH = 0.9โ1.0), then with TiCl~4~ and R~2~Mg (Mg/Ti = 1โ16), and finally with R~3~Al (Al/Ti = 0โ16). The catalyst activity in the
## Abstract Styrene was copolymerized with ethylene using Me~2~Si(Me~4~Cp)(__Nโtert__โbutyl)TiCl~2~/methylaluminoxane (Me = methyl, Cp = cyclopentadienyl) varying monomer concentration, styrene/ethylene molar ratio and polymerization temperature. Increasing styrene or decreasing ethylene concentrat