Rokytska H. Heat Physical and Relaxation Properties of Polymer Penton Based Compositions

The thesis is devoted to the solution of an important task - the creation and study of new polymer compositions, which, unlike traditional polymeric materials, are characterized by polyfunctionality and high performance characteristics. It was established that for the polymer compositions of the penton - AgI and penton - CNT systems, the glass transition process is divided into two components – low- and high- temperature. Thermomechanical and calorimetric methods, and the method of free torsional vibrations, for the first time, have been calculated the complex of relaxation characteristics of the corresponding processes and evaluated the performance characteristics of compositions with fillers different nature of interaction. According to the results of studies of specific heat capacity, a quantitative assessment of the physical interaction of the components of the compositions have been carried out. A four-component structural model of the compositions have been proposed, the geometrical and thermal parameters of the generalized elements of the penton-based polymer systems have been calculated, and the effective thermal conductivity of the penton in the state of wall layer have been quantified.