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Ultra high molecular weight polyethylene (UHMWPE) was prepared by using MgCl2-supported TiCl4 catalyst in conjunction with triethylaluminium (TEA) cocatalyst. The effects of internal and external donor on polydispersity index (PDI) of UHMWPE were investigated. The catalyst activity with various kinds of internal donor decreased in the following order: none > succinate > phthalate > diether,...
The polymerization of ethylene (E) was carried out using a MgCl2-supported TiCl4 catalyst in conjunction with triethylaluminium as a cocatalyst. The effects of the polymerization temperature (Tp) and E pressure (PE) on E polymerization were studied. The maximum catalyst activity was obtained at 40°C. The melting temperature (Tm) and crystallinity (Xc) were less affected by the Tp. The...
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