Water-based polyurethane/functionalized chitosan/zinc oxide nanoparticles nanocomposites: physical, mechanical and biocompatibility properties

Water-based anionic urethane polymer was synthesized from the reaction of diisocyanate and polycaprolactone. Then chitosan and zinc oxide nanoparticles were added to the urethane pre-polymer as a potent antibacterial agent and a double cross-linking agent. The results of the FTIR test confirmed the synthesis of urethane pre-polymer. The results of physical properties showed that with the addition of chitosan and zinc oxide nanoparticles, water...