Sierov V. Synthesis and investigation of polyurethaneurea organic-inorganic hybrids

The dissertation is devoted to creation of novel hybrid urea-urethane organic-inorganic polymers and functional fragments of different nature in organic chain. These novel hybrid polymers based on novel precursors obtaining by reaction of urethane- and ureaformation have been synthesized by sol-gel method . For additional structure formation the modification of polymers with barium chloride has been carried out. Change of sol-gel synthesis temperature conditions resulted in changes in surface morphology and porous structure. Increase of thermooxidative stability of urethane- and urea-containing organic-inorganic hybrids in comparison with linear polyurethaneureas has been shown. It has been proved that increased stability is a result of hydrogen bonds formation and can be adjusted by the choice of oligoether diol.