Diffusion studies of FeCl3 doped poly(vinyl alcohol) films

Abstract

Poly(vinyl alcohol) (PVA) films doped with various mass fractions of FeCl3 were prepared by solution casting method. The diffusion studies of FeCl3 doped PVA were carried out using distilled water, rain water and sea water. The diffusion coefficient and penetration rate decreases with increasing FeCl3 concentration, which is explained by Fick's law of diffusion. The crosslinking density Ve, is calculated based on Flory-Huggins theory. The crosslinking density increases with increase in FeCl3 dopant concentration. © 2012 American Institute of Physics.