Influence of Physical and Chemical Modification on the Optical Rotatory Dispersion and Biological Activity of Chitosan Films
Figure 2
Change in the properties of an acetic CTS-640 film during thermal processing: (a) the ORD curves, recorded on an SPU-E, of the initial film with 11.5 ± 1 wt.% (1) and of the film samples thermomodified for 1.5 h at 85 (2), 110 (3), 135 (4), and 160°C (5); (b) change in the specific optical rotation for nm (1) and the water weight loss (2) of the films as a function of the heat treatment temperature.
