Abstract
Changes in the conducting and hydrophilic properties of composites MF-4SC/polyaniline (PAni) under conditions of prolonged synthesis have been studied. A maximum of PAni content of about 0.20 by weight, which can be incorporated into the matrix of MF-4SC under these conditions of synthesis, is determined. Percolation behavior of electrical conductivity of the composites after drying was observed. The conductivity of PAni salt inside MF-4SC was estimated within the frames of the percolation model. Using the fibrous cluster model of the membrane and the conductivity data on individual PAni, theoretical assessment of the electrical conductivity of nanocomposite MF-4SC/PAni has been performed. Reasons for a significant reduction in the conductivity of PAni during its integration into the structure of the initial matrix were discussed. A scale of membrane conductivity, reflecting changes in the electrical conductivity of composites at various stages of synthesis, was drawn.
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Acknowledgements
This work has been financially supported by the Russian Foundation for Basic Research (grant no. 10-08-00758-a). Also, this work was carried out as part of the TAMOP-4.2.1.B-10/2/KONV-2010-0001 project with support by the European Union and the European Social Fund. The authors would like to express their gratitude to Dr. S.V. Timofeev (Plastpolymer Plc., St. Petersburg, Russia) for the MF-4SC membrane samples supplied and to Professor V.I. Roldugin of the Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences for the valuable discussions.
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Falina, I.V., Berezina, N.P., Sytcheva, A.AR. et al. Effects of mixed conductivity of nanocomposite membranes MF-4SC/PANI. J Solid State Electrochem 16, 1983–1991 (2012). https://doi.org/10.1007/s10008-011-1589-z
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DOI: https://doi.org/10.1007/s10008-011-1589-z