We synthesized polyethylene (PE), poly(ethylene- co-1-decene), poly(ethylene- co- p-methylstyrene) and poly(ethylene- ter-1-decene- ter- p-methystyrene) using a rac-Et(Ind) 2ZrCl 2 metallocene catalyst and a methylaluminoxane cocatalyst system. The materials were characterized using nuclear magnetic resonance spectroscopy and Fourier transform infrared spectroscopy. We compared and studied the kinetics, thermal properties and mechanical ones of these polymers. T g was related to the amorphous phase of the polymers, whereas the tensile strength and storage modulus (E’) were related to the crystalline phase. We also found that PE has the highest crystallinity through differential scanning calorimetry and wide-angle X-ray scattering analysis. The polymerization rates of poly(ethylene- co-1-decene) and poly(ethylene- ter-1-decene- ter- p-methystyrene) were always higher than that of polyethylene.
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