Novel cast polyetherurethanes based on dispersed polymeric polyols

Our study was focused on obtaining polyetherurethanes synthesized with using polymeric polyether based polyols differing in dispersed copolymer content (10, 20 and 40 wt%). The polyetherurethane materials were synthesized via two step method. The influence of different polymeric polyether based polyols on the chemical structure, morphology, mechanical and thermal properties of the obtained polyetherurethanes was investigated. The Fourier transform infrared spectroscopy (FTIR) was used to analyze and confirm the chemical structure of synthesized materials. Analysis of thermal stability by thermogravimetric method (TGA) of polyetherurethanes indicated that the decomposition of all materials carried out in two steps. The results of the thermomechanical analysis (DMA) showed that the polyetherurethanes synthesized with using polymeric polyols containing 10 wt % of the copolymer characterized by the highest storage modulus of all materials. The same materials have got also the highest tensile strength value.