Abstract
The dielectric properties of chitosan films with a degree of deacetylation of 86% have been investigated in the frequency range of 103–106 Hz covering a broad range of temperatures from — 150 to 150°C. The variation of the dielectric properties with temperature has been associated with two dielectric processes: (a) a local relaxation attributed to the presence of hydrogen-bonded water appearing at low temperatures (b) a conduction process related to water molecules which becomes desorbed upon heating at T >80 °C. Isothermal dielectric experiments have been performed in order to follow, in real time, the occurrence of both, the water sorption and desorption processes.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
