Variability between chitosan membrane surface characteristics as function of its composition and environmental conditions

The object of the present work is investigate the morphological modifications of several composition chitosan films, due to components concentration changes, under temperature and relative humidity controlled conditions. For the surface analysis study results obtained by conventional optical and polarization microscopies so as UV–vis spectroscopy are used. Different capacity adsorption of different chitosan membranes introduce changes in thermo-mechanical properties.