Innovative thermoplastic chitosan obtained by thermo-mechanical mixing with polyol plasticizers

► Plasticized chitosan was prepared by thermo-mechanical kneading. ► Glycerol gives the most important amorphous phase content. ► Amorphous phase content increases with polyol quantity. ► Higher mechanical properties were obtained for plasticized chitosan with sorbitol. ► Viscoelastic properties increase with storage time.