%0 Journal Article
%T Study of electrical properties of a reduced graphene
%A Emaad T Bakir Al-Tikrity
%A Ibrahim F Waheed
%A Sabah M Ali
%J Polymers and Polymer Composites
%@ 1478-2391
%D 2019
%R 10.1177/0967391118809439
%X This work reports the synthesis and characterisation of reduced graphene-1,3,4-oxadiazole-2-thiol (rGS) as a novel nanocompound derivative for graphene. The preparation was performed through a series of reactions starting from graphene oxide, followed by incorporation of different proportions of this nanocompound with poly(vinyl alcohol) (PVA), via non-covalent bonding, to afford the rGS/PVA polymer composites. The pure rGS compound, rGS/PVA composite films and pure PVA film were characterised by different techniques including infrared (Fourier transform infrared) spectroscopy, scanning electron microscopy and powder x-ray diffraction. The electrical properties of the composite films, involving dielectric constant, permittivity (¦Å¡ä), imaginary permittivity (¦Å¡å), conductivity (¦ÒAC) and loss factor tan ¦Ä, were investigated. The measurements were performed at frequencies of (5kHz to 0.5 MHz) at room temperature. At low frequency, the dielectric permittivity (¦Å¡ä) and imaginary permittivity (¦Å¡å) attained higher values in all cases, although with increasing frequency these values diminished rapidly. It was also found that the alternating current conductivity of the composites increased with increasing frequency
%K Reduced graphene-oxadiazole-2-thiol (rGS)
%K poly(vinyl alcohol)
%K dielectric constant
%U https://journals.sagepub.com/doi/full/10.1177/0967391118809439