COMPOSITES OF THE CONDUCTIVE POLYAMINOARENES IN THE MATRIX OF STYROMAL
Journal Title: Праці Наукового товариства ім. Шевченка - Year 2017, Vol 48, Issue
Abstract
The electrical properties and morphology of polymer-polymer composites based on conducting polyaminoarenes – polyorthotoluidine, polyaniline and polyorthoanisidine in dielectric matrices of styromal (styrene copolymer with maleic anhydride, StMA) have been studied. Synthesis of polymer-polymer composites was conducted by oxidative polymerization of aminoarenes in styromal solutions of various concentrations in a mixed solvent of water-dioxane (1:1) in the presence of equimolar amounts of oxidant (ammonium persulfate) and 0.5 M toluensulphonic acid. The content and chemical structures of the conductive polymer exert significant influence on morphology and conductivity of the StMA composites. Concentration dependence of the electrical conductivity of composites reveals percolation behavior with the value of percolation threshold at 8–10 % content of polyaminoarenes. According to the temperature dependence of the resistivity it has been confirmed the semiconductor character of conductivity of composites, while the presence of styromal in the composite causes the increasing of activation energy of charge transfer compared to conjugated polyaminoarene. The study of the morphology of film composites has showed that the conducting polymer in the matrix of styromal forms its own percolation net. Channels of conductivity, contacted with each other, provide enhanced conductivity of composites compared with StMA matrix.
Authors and Affiliations
Olena AKSIMENTYEVA, Volodymyr DUTKA, Yulia HORBENKO, Halyna MARTYNYUK, Ulyana RIY
Keywords
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