Modified Magnesium Alkyls for Ziegler–Natta Catalysts

Magnesium alkyls such as butyl octyl magnesium and ethyl are used precursors for highly active water-free chloride support materials Ziegler–Natta catalysts. These show a high viscosity in hydrocarbon solvents which negatively affect their industrial application. Density functional theory (DFT) calculations supported the hypothesis that can form oligomeric chain structures responsible viscosity. Heterocumulenes isocyanates, isothiocyanates carbodiimides were studied additives reducing viscosity, by DFT calculations. The modified have further been tested catalyst synthesis polymerization of ethylene. results showed activities similar polymer properties compared with prepared without alkyl.