properties Three samples of each film were cut into discs with a diameter of 2 cm. They were dried in an oven at 105◦C for 24 h (DeLeo, TLK48,Brazil) and the moisture content (MC) was determined by weight loss. The water solubility (WS) analysis was performed accordingto a methodology described by Colla et al. (2006), with some mod-ifications. The dry films were immersed in 30 mL of distilled water,held under soft stirring at 25◦C for 24 h (Novatecnica, NT145, Brazil)