Propylene polymerization using MgCl2/ethylbenzoate/TiCl4 catalyst: Determination of titanium oxidation states
β Scribed by A. S. N. Al-Arifi
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 121 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0021-8995
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π SIMILAR VOLUMES
The effect of different external silane donors on the activity and isotacticity of polypropylene prepared by using Mg(OEt) 2 -phthalate ester-TiCl 4 -AlEt 3 -alkoxy disilane catalyst systems has been investigated. In the case of catalyst systems containing (trimethylsilyl)methylalkyldimethoxysilanes
## Abstract A highβactivity ZieglerβNatta catalyst of TiCl~4~βsupported MgCl~2~ (ethoxide type) was prepared. Ethyl benzoate (EB) and polydimethylsiloxane (PDMS) were used as internal donors, while __p__βmethyl toluate (MPT) and triethylaluminum (TEA) were used as the external donor and cocatalyst,