Matkovska O. Structure and electro-physical properties of the polymer organic-inorganic systems based on epoxy oligomers and heteropolyacids

The object of the research is the formation regularities of the organic-inorganic polymer systems and structure organization influence on their properties. The research purpose is the study of the structure formation regularities and their influence on the electro-physical properties of the organic-inorganic polymer systems based on epoxy oligomers (EO) and heteropolyacids (HPA). The main results were obtained by means of IR and NMR (31P) spectroscopies, wideangle radiographic analysis, optical microscopy, differential scanning calorimetry, thermomechanical analysis, thermogravimetry, DC, broadband dielectric relaxation spectroscopy. It is found that solvent of HPA (water) in the initial mixture is determinative factor that has an influence on the structure and electrical properties of the EO/HPA polymer. Electrical and structural models of the epoxy polymer conductivity as well as morphological one which explain the formation of heterogeneous structure of polymer matrix have been developed.