Effect of the cocatalyst on the copolymerization of propylene and small amount of ethylene with high activity Ziegler-Natta catalyst
✍ Scribed by G. Collina; G. Morini; G. Ferrara
- Publisher
- Springer
- Year
- 1995
- Tongue
- English
- Weight
- 324 KB
- Volume
- 35
- 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,
This paper presents an experimental kinetic study of the polymerization of propylene in liquid monomer with a high activity catalyst. The influences of the concentration of hydrogen and the molar ratios of the catalyst, cocatalyst, and electron donor on the activation period, the maximum activity, t