EVALUATION OF THERMAL DEGRADATION PARAMETERS OF POLYANILINE-BASED BISMUTH TELLURIDE NANOCOMPOSITES

The effect of bismuth telluride (Bi2Te3) nanoparticles and multi-walled carbon nanotubes (MWCNTs) on thermal destruction and surface morphology of their nanocomposites with polyaniline (PANI) at different nanophase contents (Bi2Te3 - 7.3 wt%, MWCNTs - 1.5 wt%), obtained for the first time using the mechanochemical approach, has been investigated. It is shown on the basis of the data obtained by simultaneous thermal analysis and scanning tunnelling microscopy that the introduction of inorganic nanophase has a key effect on the thermal properties of the synthesised composites PANI-Bi2Te3 and PANI-Bi2Te3-MWCNTs, as well as on their structure. The thermal stability of nanocomposites and the initial polymeric matrix, assessed from the temperature of the onset of the second mass loss stage, is the same and equal to 166 °C.