Preparation and characterization of poly(vinyl alcohol) borate/chitosan films

In this study, poly(vinyl alcohol) (PVA)/Borate/Chitosan films were prepared by using boric acid as a crosslinker. Synthesized films were characterized by FTIR, AFM, XRD and SEM methods. On the otherhand, thermal properties of the films were determined by TG/DTG analysis. At the same time, swelling properties of the films were investigated at two different temperatures (25 and 37 centigrade) in distilled water, KCl/HCl buffer (pH 1.2) and phosphate buffer (pH 7.4) solutions. For the enhancement of the physical and chemical properties of the films, PVA, CS and boric acid amounts used the film production was changed and the results were compared with each other. Keywords: Chitosan, chitosan/PVA, borate, PVA/borate gel