Feasibility Study of the Synthesis of Isocyanate-Free Polyurethanes from Catechin

With the current trend of increasing efforts to develop non-isocyanate-based polyurethanes (NIPUs), this study aimed check feasibility development a method using cyclic carbonate modified catechin and amine synthesis non-isocyanate urethane with objective further extend these results polyurethane synthesis. The methods used in consist four steps: glycidilation catechin, hydrolysis epoxide, synthesis, carbamate through condensation butylamine. resulting products were analyzed FTIR (Fourier transform infrared) spectroscopy NMR (nuclear magnetic resonance) spectroscopy. showed that could be successfully obtained four-steps opening possibility developments for starting from condensed tannins.