Within the temperature 293 to 425 K and frequency 10 -3 to 10 6 Hz ranges by using the direct and alternating currents, the dynamics of electrical conductance σ of linear polyethylene with the impurity of 20 wt.% soot and 20 wt.% CaCO 3 (calcite) has been investigated. It has been shown that for the solid state of polyethylene (below 380 K), the dependence of electrical conductance on the temperature T on both the direct (σ DC ) and alternating (σ AC ) currents can be described by the power dependence on ( )is the temperature of the phase transition for polyethylene). It has been shown that when being repeatedly measured, the σ DC and σ AC values increase, and the power indexes of temperature dependence decrease. The measured values are stable after the fourth measurement. The greatest changes in the conductance, depending on the first and second measurements (almost three orders of magnitude), were observed at a temperature close to T 0 . It has been assumed that the dynamics of electrical conductance, depending on the number of measurements, is caused by the influence of the electric field on the ordering of impurity in polymer. It has been shown that for T > 380 K, the typical for liquids Arrhenius dependence of σ DC and σ AC on temperature is observed. It has been found that at the first measurement, the temperature dependence of σ DC and σ AC can be described by two activation energies, while for a stable state (starting from the fourth measurement)by one activation energy (within the measurement error of the same for σ DC and σ AC and equal to 1 eV).

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Within the frequency range 10-1-10 5 Hz under the temperatures 293-295 K, the dielectric properties of a planar-oriented nematic liquid crystal 6CB with the embedded of 0.1% superionic conductor Ag 7 GeS 5 I nanoparticles have been investigated. It has been shown that for the whole temperature range, the obtained frequency dependences of the components ε' and ε" composing the complex dielectric function can be separated into 3 sections. The dispersion of ε' and ε" for the lowest frequencies (less than 10 2 Hz) is described by the Debye equation and is caused by the rotation of the dipole moments of LC molecules under the action of electric field within the angles corresponding to the fluctuations of the order parameter in a thin near-electrode layer. It has been shown that the temperature dependence of the value of inverse relaxation time for such a process is described by straight lines in the Arrhenius coordinates within each mesophase. The activation energies for these dependences have been estimated for each mesophase. It should be noted that within the middle range of frequencies (10 2-10 4 Hz), for each temperature, one can separate a section where the magnitude of the conductivity does not depend on the frequency. The conductivity in these sections is equal to the conductivity of LC with the nanoparticles. It has been found that both the value of inverse relaxation time and the value of conductivity change according to the Arrhenius law on the temperature. The activation energies for the temperature dependence of conductivity and the temperature dependence of inverse relaxation time have been estimated, and it has been shown that they are close (for the nematic phase) and equal (for the isotropic phase). In the highest frequency section of the dielectric spectrum (10 4-10 5 Hz), the conductivity of the mixture 6CB + 0.1 wt.% Ag 7 GeS 5 I changes according to the power law of the frequency. It has been suggested that a sharp increase in the conductivity of 6CB with nanoparticles of the superionic conductor Ag 7 GeS 5 I at the concentration 0.1 wt.% was caused by the sharp increase in the electronic component of conductivity through Ag 7 GeS 5 I nanoparticles.

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