Dielectric constant, optical transmission, and thermal diffusivity monitoring of iodine-impregnated polystyrene films

A simple method for the iodine doping of atactic polystyrene films is described. The marked changes in the physical properties of the polystyrene films, such as dielectric constant, optical absorption coefficient, and thermal diffusivity, are presented as a function of the doping time. The results show strong evidences of the onset of an order–disorder transition as a function of the doping time.