Polypyrrole–polyanyline polymer composite

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Synthesis of polypyrrole-polyaniline polymer composite was carried out with polycondensation of aniline in an acid medium in the presence of nanosized polypyrrole particles under the action of ammonium persulfate. Polypyrrole nanoparticles were previously obtained by us during the polymerization of pyrrole in a solution of sodium 4- (4-dimethylaminophenilazo) benzenesulfonate under the action of FeCl3. In the IR spectrum of polypyrrole-polyaniline composite, which we synthesized, absorption bands in the spectral regions at 1 580, 1 490, 1 350, 1 050, 900-800 cm -1 appear due to oscillations of the atoms in the ring of the pyrrole, valence fluctuations of the atoms in the ions The C–N, deformation oscillations of bonds = C–H and C–H. The resulting samples of composites show the electrical conductivity characteristic of semiconductor materials (2,7 × 10 -5 –4,1 × 10 -5 Sm/cm). There is an increase in the conductivity of [polypyrrole–polyaniline] composite compared with pure polyaniline. Our models of lithium chemical current sources made with cathode materials on the basis of synthesized composites have a voltage of open circuit of 3.21-3.33 V. The numerical values of the specific energy of these current sources are compatible with each other and are in the range of values 1.89-2.75 W × s × g -1 . The electrical capacity of samples of composites was measured by cyclic voltammetry. The numerical values of the specific capacitance for polypyrrole-polyaniline composite on a graphite electrode are 6,55 F/g in a solution of 1 M H 2 SO 4 at a scan rate of 10 mV/s. It has been shown that the specific capacity of the composites affects the type of electrolyte and the nature of electrode surface. Keywords : polypyrrole, polyaniline, polymer composites.