Investigation of properties of electroconducting nanozones in materials of various nature by the electron paramagnetic resonance method

Authors

DOI:

https://doi.org/10.15587/1729-4061.2017.104055

Keywords:

nanoparticles, polyaniline, biomineral, enamel, bones, textile material, electron paramagnetic resonance, conductive nanozones

Abstract

This work studied properties of conductive nanozones in dependence on the material nature by the method of electron paramagnetic resonance. Delocalization of charge carriers and strong exchange interactions between paramagnetic centers take place in annealed biominerals, like in polyaniline in a form of emeraldine salt. Since biominerals, unlike polyaniline, can be subjected to a high-temperature anneal, this extends potentials of the EPR method in solving issues associated with the properties of conductive zones in nano-sized polyaniline. It was shown that the EPR signals in the materials under consideration are conditioned by the electrical charge carriers and variations of electrical properties result in variation of the EPR signal characteristics. Consequently, information on the mechanisms of the EPR signal induction in one group of specimens can be used for interpretation of the signal nature and elucidation of properties of local conductive zones in other materials.

It was ascertained that the characteristics of electron paramagnetic resonance of conductive nanozones in biominerals and the textile materials containing nanoparticles of polyaniline are similar. This feature is due to the similarity of paramagnetic charge carriers localized in nano-sized conductive zones of biominerals and organic polymers. Interconnected electron paramagnetic resonance studies of conductive zones in various materials can promote a more successful application of electron paramagnetic resonance in developing nanotechnologies for creation of conductive textile materials containing nanoparticles, especially nanoparticles of polyaniline with a high level of oxidation

Author Biographies

Yana Red'ko, Kyiv National University of Technology and Design Nemirovich-Danchenko str., 2, Kyiv, Ukraine, 01100

PhD, Associate Professor

Department of materials, commodity research and examination of textile materials

Aleksandr Brik, M. P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the National Academy of Sciences of Ukraine Akad. Palladina ave., 34, Kyiv, Ukraine, 03680

Doctor of Physical and Mathematical Sciences, Professor, Head of Department

Department of physics and mineral structures biomineralogy

Natalia Suprun, Kyiv National University of Technology and Design Nemirovich-Danchenko str., 2, Kyiv, Ukraine, 01100

Doctor of Technical Sciences, Professor, Head of Department

Department of materials, commodity and examination of textile materials

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Published

2017-06-30

How to Cite

Red’ko, Y., Brik, A., & Suprun, N. (2017). Investigation of properties of electroconducting nanozones in materials of various nature by the electron paramagnetic resonance method. Eastern-European Journal of Enterprise Technologies, 3(5 (87), 24–30. https://doi.org/10.15587/1729-4061.2017.104055

Issue

Vol. 3 No. 5 (87) (2017): Applied physics

Section

Applied physics

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Copyright (c) 2017 Yana Red'ko, Aleksandr Brik, Natalia Suprun

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