By the method of differential scanning calorimetry (DSC) it is shown that films of polyvinyl alcohol (PVA) obtained from aqueous solution under the action of laser irradiation of visible wavelengths (445, 532 and 650 nm) have different structural organization, which significantly affects their electrical conductivity and thermal stability. The dependence of the activation energy of change in the specific electrical conductivity of films on the enthalpy of melting, which is determined by the wavelength (frequency) of laser exposure during the formation of films, has been found.
N.N. Komova (Wed,) studied this question.