Synthesis And Thermal Characterization Of Polyurethanes Obtained From Linseed and Oliveoil-Based Polyols

The use of vegetable oils to replace fossil feedstock has become an area of opportunity and a priority for study in the field of polymer science. Vegetable oils are considered as renewable resources with high potential, low cost and full availability. The aim of this study is the synthesis of biobasedpolyols from linseed oil (Gossypiumbarbadanse) and olive oil as feedstock. Their synthesis was successfully performed, as can be concluded from the determination of their hydroxyl index as well as the structural and thermal characterization carried out in this work. Polyurethanes from biobasedpolyols were synthesized with two different isocyanates (HDI and MDI) and variable polyol/isocyanate ratio and they were further characterized by infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry and scanning electron microscopy, concluding that linseed oiland olive oils could be considered as valid alternatives for the synthesis of biobased polymeric materials.