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S.H. Abdul Kaleel, Bijal Kottukkal Bahuleyan, S.K. De, Masihullah Jabarulla Khan, Rachid Sougrat, Mamdouh A. Al-Harthi
Journal of Industrial and Engineering Chemistry, April 2012
Abstract
Ethylene polymerization was carried out using highly active metallocene catalysts (Cp2ZrCl2 and Cp2TiCl2) in combination with methylalumoxane. Titanium(IV) oxide containing 1% Mn as dopant was used as nanofillers. The influence of filler concentration, reaction temperature and pressure on the catalytic activity and polymer properties was investigated. There was a fourfold increase in the activity of zirconocene catalyst by addition of doped-titania. The morphology indicates that the doped-titania nanoparticles have a nucleus effect on the polymerization and caused a homogeneous PE shell around them. The optimum condition for polymerization was found to be 30 °C.
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