Effect of the cocatalyst on the copolymerization of ethylene and propylene with high activity Ziegler-Natta catalyst
✍ Scribed by J. Koivumäki; J. V. Seppälä; L. Kuutti
- Publisher
- Springer
- Year
- 1992
- Tongue
- English
- Weight
- 366 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0170-0839
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## Abstract A high‐activity Ziegler–Natta catalyst of TiCl~4~‐supported MgCl~2~ (ethoxide type) was prepared. Ethyl benzoate (EB) and polydimethylsiloxane (PDMS) were used as internal donors, while __p__‐methyl toluate (MPT) and triethylaluminum (TEA) were used as the external donor and cocatalyst,
A soluble ethylene catalyst were obtained by mixing a methylene dichloride solution of dichlorobislT-cyclopentadienyl) titanium (Cp2TiCI2) with a heptane solution of ethylaluminium sesquichloride (AlzEt3C13) or of diethylaluminium chloride {AIEt2CI). Ethylene was polymerized using these catalysts; t