Polyolefin nanocomposites formed by melt compounding and transition metal catalyzed ethene homo- and copolymerization in the presence of layered silicates

摘要: Nanocomposites of high density polyethylene (HDPE), linear low (LLDPE) and highly branched rubbers were prepared both by means melt compounding ethene homo- copolymerization in the presence layered silicates which rendered organophilic via ion exchange with various quaternary alkyl ammonium cations. In comparison to compounding, in-situ copolymerization, catalyzed MAO-activated zirconocene (MBI), nickel (DMN) palladium (DMPN) catalysts, proved more effective nanocomposite formation, as evidenced larger interlayer spacings formation exfoliated anisotropic nanosilicates aspect ratio.