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. •Polymeric polyether based polyols differing in copolymer content were used to the synthesis of cast polyurethanes.•Cast polyetherurethanes were characterized by two glass transition temperature arise from polymeric polyols structure.•Thermal decomposition of cast polyetherurethanes synthesized using polymeric polyols took place in two main steps.•Mechanical properties of cast polyetherurethanes depend on the copolymer content in polyether base polyol.•Synthesized cast polyetherurethanes present significant potential uses because of their thermal and mechanical properties.