CHARACTERISTICS AND PROPERTIES OF METALLOCENIC SYNDIOTACTIC POLYPROPYLENE

摘要

This work investigates the characteristics and properties of syndiotactic polypropylene produced by Ph_2C(Flu)(Cp)ZrCl_2/MAO metallocene catalyst system. The obtained s-PP presented melt temperature around 120°C, being more amorphous as the polymerization temperature increased. From the data obtained through HAAKE mixture chambers we could carry out the rheological characterization of the polymer, which presented a non-Newtonian pseudoplastic behavior, as expected. The polymer also had a good mechanical performance compared to conventional i-PP.