Document Type : Reasearch Paper
Chemistry Research Laboratory, Faculty of Chemistry, Payame Noor University of Shiraz, Shiraz, Iran.
Polymer Research Technology Laboratory, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
Conducting polymers, because of their special properties, are used to introduce conductive polymeric composites. Also, clays have recently been used for preparation of polymer composites with enhanced mechanical and thermal properties. The aim of this work is to study the synergetic effect of the co-presence of conducting polyaniline and montmorillonite in the polyethylene matrix. Polyethylene /montmorillonite /polyaniline nanocomposite was prepared by in-situ polymerization of polyaniline in the presence of PE and MMT. All nanocomposites contain 5wt% of OMMT and different amounts of conducting PANI vary 5, 10, 15 and 20wt%. Electrical conductivity was measured and characterized by FTIR, DSC, SEM, XRD and DMA.The thermal behavior of PANI chains in the nanocomposites was investigated by DSC and it was observed that OMMT causes a remarkable increase in thermal stability and it improved mechanical properties. SEM and XRD patterns clearly showed dispersal of PANI and exfoliation/intercalated in the polymer matrix.