Ethylene polymerization was carried out with a novel in-situ-supported metallocene catalyst that eliminates the need for a supporting step before polymerization. The influence of the metallocene amount, aluminum to zirconium mole ratio, temperature, pressure, and cocatalyst type on polymerization ki
A supported titanium postmetallocene catalyst: Effect of selected conditions on ethylene polymerization
✍ Scribed by Anna Pietruszka; Marzena Białek; Krystyna Czaja
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 105 KB
- Volume
- 123
- Category
- Article
- ISSN
- 0021-8995
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The effects of polymerization conditions were evaluated on the production of polyethylene by silica-supported (n-BuCp) 2 ZrCl 2 grafted under optimized conditions and cocatalyzed by methylaluminoxane (MAO). The Al : Zr molar ratio, reaction temperature, monomer pressure, and the age and concentratio
Tailoring of the molecular weight distribution (MWD) in ethylene polymerization was attempted by selectively combining different types of metallocene catalysts onto a single support. The catalyst produced by supporting Et[Ind] 2 ZrCl 2 and Cp 2 HfCl 2 onto a single MAO pretreated silica support was