Synthèse et caractérisation des matériaux composites conducteurs organique/inorganique à base des isomères d’anisidine et d’aniline sur différents support

Abstract

In the present work, the composites with matrix (aniline and / or P-anisidine) and (aniline and / or O-anisidine) were synthesized by chemical polymerization using ammonium persulfate as oxidant with a molar fraction of monomer: oxidizing equal to 1. By using inorganic support as reinforcements. Firstly the composites were prepared with titanium carbide charge (TiC). Secondly they were synthesized with titanium dioxide (TiO2), and finally we used zinc oxide (ZnO) and we studied the influence of the quantity of this charge on the properties of these composites. The resulting products were characterized by X-ray diffraction (XRD); fourier transform infrared (FT-IR); UV-visible (UV-vis); thermal analysis (TGA) and transmission electron microscopy (TEM) and energy dispersive spectroscopy of (SDE). The electrochemical response was studied by cyclic voltammetry,. The UV-vis; TEM and FT-IR analysis showed a strong interaction between the charge and the polymer which increases their stability; this is confirmed by thermal analysis (TGA) which shows the thermal stability of the composite (polymer/TiC , polymer/TiO2 and polymer/ZnO) , it is higher than that of pure polymers. Moreover The electrochemical behavior of polymer/TiC shows that these composites exhibits a redox processes indicate that the polymerisation on (TiC/TiO2 ou ZnO) nanoparticles produces electroactive polymers.