Abstract
The features of the morphology and properties of thin films of polyaniline redoped with a mixture of dodecylbenzenesulfonic acid and N-methylpyrrolidone are studied. The films have a developed morphology formed by chaotically distributed fibril-like structures. It is shown that formation of the developed morphology is accompanied by an increase in the dopant concentration, an increase in the specific electrical conductivity of the film, and a decrease in the band gap energy of the polymer. Formation of the fibrillar structure of the polyaniline film is explained by the self-assembly of doped polyaniline molecules suspended in solution.
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Funding
This work was carried out in accordance with the State Assignment for the Omsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences within the framework of project “Investigation of physical processes in heterostructures based on new functional nanomaterials and nanocomposites for microsensors, chemical current sources and medical applications.”
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Lobov, I.A., Davletkildeev, N.A., Sokolov, D.V. et al. Formation of Fibril-Like Structures in Thin Polyaniline Films during Redoping with a Mixture of Dodecylbenzenesulfonic Acid and N-Methyl-2-pyrrolidone. Polym. Sci. Ser. A 63, 100–105 (2021). https://doi.org/10.1134/S0965545X21020073
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DOI: https://doi.org/10.1134/S0965545X21020073