Chemical synthesis of poly-o-phenylidenediamine-silicomolybdic acid composite and its electrochemical and spectral properties

A new method for chemical production of composites based on poly-o-phenylidenediamine (PPD) by oxidizing o-phenylidenediamine (OPD) with silicomolybdic acid (SiMo) in neutral and acidic media is developed. Electrochemical and spectroelectrochemical studies reveal the presence of small deviations in the properties of composites synthesized. Cyclic voltammetry studies show that the composites are active and exhibit sufficiently high electrochemical stability. The presence of SiMo anions in the PPD matrix is confirmed by electrochemical and spectral studies in combination with x-ray microanalysis of composites. The ratio between the number of phenylazine polymeric links and heteropolyanions is found.