Properties of the Hybrid Glauconite/Polyaniline Composites Synthesized in the Aqueous Citrate Acid Solutions

Abstract

For the first time the series of the composites of aniline and natural mineral glauconite with different ratio of components has been synthesized by oxidation of aniline by ammonium peroxydisulfate in 0.5 M citrate acid aqueous solutions in the presence of dispersion of mineral filler. X-ray phase analysis confirms the amorphous-crystalline structure of produced composites. Results of FTIR spectral analysis show that the samples contain PAn in the form of emeraldine salt and also indicate the presence of weak interfacial interaction between particles of glauconite and polyaniline macrochains in the result of the formation of hydrogen bonds. The results of thermogravimetric analysis of synthesized samples with different composition showed that thermal stability of composites samples increases under the higher glauconite content. It is determined that the thermodestruction of composites is a multistage process. The electric conductivity of composites produced samples with high content of polyaniline is on the level of pure polyaniline. The specific magnetization of synthesized composites in applied magnetic field increases to the value which is characteristic of the pure mineral under the increasing of glauconite content in the composite.