Ionic conductivity of polymeric nanocomposite electrolytes based on poly(ethylene oxide) and organo-clay materials

Low frequency dielectric relaxation processes and ionic conductivity of montmorillonite clay nanoparticles colloidal suspension in poly(vinyl pyrrolidone)−ethylene glycol blends

“…These values are also marked in the same Figure. These values are exactly equal to the tanδ peak frequency f EP . In complex impedance plane plots the extrapolated intercept on the real axis Z′ of the common part of two arcs gives the value of dc bulk resistance R dc , of the dielectric material [7,8,55]. It is observed that the R dc value of these materials decreases with the increase of MMT clay concentration, and hence the σ dc values increases.…”

“…Swelling of the clay is mainly due to solvent intercalation (absorption) in the clay galleries, and also because of the adsorption of solvent molecules on the hydroxylated aluminate clay surfaces through H-bond interactions, which results the clay exfoliation. The intercalated and exfoliated clay sheets in polymeric solvent results the organic-inorganic nanocomposites of highly complicated structures, which is responsible for the improved thermal, mechanical, gas barrier and electrical properties of the polymer-clay nanocomposites (PCNs) [6][7][8][9][10][11][12][13][14][15][16][17][18]. The investigation of broadband dielectric spectroscopy (BDS) of the materials covers nowadays the extraordinary spectral range from 10 -6 to 10 12 Hz [19].…”

Multifunctional electroactive electrospun nanofiber structures from water solution blends of PVA/ODA–MMT and poly(maleic acid-alt-acrylic acid): effects of Ag, organoclay, structural rearrangement and NaOH doping factors

“…According to the well-known Armand's theory, ionic motion in polymersalt-complex is not due to charges hopping from site to site, but it is a continuous motion occurring in the amorphous region of the polymeric material [5]. Recently, attention of many researchers has also focused on synthesis of various polymer nanocomposites and nanofiber materials, as well as their metal, metal oxide, clay mineral, graphene and carbon nanotube incorporating compositions as excellent conductive nanomaterials [6][7][8][9][10][11].…”

Multifunctional e-spun colloidal nanofiber structures from various dispersed blends of PVA/ODA-MMT with PVP/ODA-MMT, poly(VP-alt-MA) and AgNPs incorporated polymer complexes as electro-active platforms

“…The hollow spherical morphology of poly(diphenylamine) (PDPA) inside the galleries of montmorillonite organoclay showed different conductive property than PDPA formed by the conventional method due to the confinement effect [52]. Kim et al [53] evaluated effects of organo-MMT clay in the matrix PEO/organoclay nanocomposite electrolytes on the ionic conductivity. They observed that the polymeric electrolyte composites exhibited higher conductivity than pristine Na + -MMT mineral clay.…”