Mishchuk O. Polymer systems based on ionomer polyurethanes and natural compounds capable to degrade under environmental conditions

The subject of research was creation of polymer systems based on synthetic polymer and nature compounds from renewable recourses, able to degrade under environmental factors. The aim of the work was creation of polymer systems on the basis of ionomer polyurethanes and natural compounds, able to degrade under environmental factors, establishment of structure-properties relationships, and regularity of structure and composition effect on (bio)degradation processes. Key data were obtained on the basis of the following research methods: infrared spectroscopy, спектроскопии, exclusion chromatography, X-ray structural analysis, differential scanning calorimetry, dynamic mechanical analysis, thermogravometric analysis, pyrolytic mass-specrometry. The possibility of development of polymer systems based on ionomer polyurethane and natural compounds with essentially increased ability to degradation under environmental condition in comparison with traditional water based ionomer polyurethanes and materials based on mechanic mixtures of water dispersions of ionomer polyurethanes and water solutions of nature polymers. The new method of obtaining of the starch-containing water dispersions of ionomer polyurethanes by means of introducing of water starch solution into the ionomer olygourethane solution combining the chain extending stage and dispersion process has been elaborated. The novel saccharide-containing ionomer polyurethanes with using saccharide as diol base, and the novel ionomer polyurethanes containing at once mono-(di-) and polysaccharides' fragments in their composition, that were introduced at different synthesis stages, have been synthesized for the first time. The possibility to appreciate the (bio)degradability degree using the physical methods was shown. The established regularities of the structure changing and properties of ionomer polyurethanes containing the the fragments of the natural compounds, allows to forecast and regulate their properties and the operation life by the means of the content changing and the conditions of obtaining, that may exclude the power inputs on the reclamation.