Study of the properties of nanocomposite cobalt-containing IR-pyrolyzed polyacrylonitrile films

Chemical Bonding Specifics of Hybrid Metal-Polymer Nanocomposites Based on Cobalt Nanoparticles and Polyacrylonitrile: X-Ray Spectroscopy Investigation

“…The structure of metal-organic nanocomposites can be obtained by the assembly of metallic centers and organic linkers both through strong covalent bonds and physical interaction without formation of chemical bonding [8]. In the previously research [2] it was shown that Co-containing PAN film have surfaces with high values roughness, which linearly depend on the concentration of the modifying additive in the film material. In contrast, the concentration of the modifying additive used in the present case allows to fabricate Co/PAN nanocomposite films with evenly porous structure (Fig.…”

“…Hybrid nanomaterials, including polymers with a polyconjugated system, are able to show excellent electric, magnetic, electrochemical and gas-adsorption properties [1][2]. In view of this, the exploration of approaches to synthesize a new hybrid nanomaterials based on polymers with a polyconjugated system and high dispersed nanoparticles is of great interest.…”

“…In view of this, the exploration of approaches to synthesize a new hybrid nanomaterials based on polymers with a polyconjugated system and high dispersed nanoparticles is of great interest. Nanocomposite films of Co-containing polyacrylonitrile (PAN) films were manufactured using the method of pyrolysis under incoherent IR-radiation [2]. It was established that the surface, elemental composition, the chemical and electron states as well as electrical properties depend on the technological parameters of their formation.…”

Multifractal Detrended fluctuation Analysis in Examining Surface Properties of the Gas-Sensing Metal-Containing Polyacrylonitrile

“…The gas sensitivity (S) was defined as the following ratio S = (R o -R g )/R o , when R o > R g , where R o is the resistance in air, R g is the resistance in the atmosphere of the detected gas (Semenistaya et al, 2015).…”

“…PAN can be converted into semiconductive or conductive states through chemical reactions under annealing or pyrolysis without changing its basic structure , Semenistaya et al, 2015. Under the pyrolysis proceeding at temperatures higher than 300 ºС, PAN is transformed into a polymer with a cyclic structure, containing the conjugated double bonds .…”