Development and characterization of biodegradable blending Starch/PVA Films theoretical and experimental comparison

A Study of the Effect of Starch Content on the Water Absorption of PVA/starch Blends

“…After blending of PVA with 25% of corn starch, there was a change in FTIR characterizes which refer to the physical mixing so it was seen appearance of a small sharp new band within range of (1732.24 cm -1 ) due to (CH) stretching [31]. This characteristic peaks was due to some of the water molecules will be present in the films by the solution casting method and resulting from the carbonyl functional groups (C=O) stretching arising from the acetate groups that remain after the manufacture of PVA [32]; the results proved bands shifting toward the longer (wave numbers). These results proved that the mixing process was carried out successfully, that was in a good agreement with [33].…”