In this paper, the optical properties of randomly mixed consisting of poly(methyl methacrylate) and Chromium chloride have been investigated. The samples of composites have been prepared by adding Chromium chloride to poly(methyl methacrylate) with different weight percentages from Chromium chloride with polymer and different thickness. Results showed that the absorbance increases with the increase of the concentration of CrCl 2 . The absorption coefficient, extinction coefficient, refractive index and real and imaginary parts of dielectric constants are increasing with the increase of the CrCl 2 concentration. The energy band gap is decreased with the increase of the CrCl 2 concentration.

In this paper, samples of composites consisting of polyvinyl alcohol-polyacrylamide and pomegranate peel were prepared by using the casting method. The polymers composites which the prepared have many applications. The concentrations of pomegranate peel are (0, 2,4 and 6) wt.%. The results show that the optical properties of polymer matrix are changed with the increase of the pomegranate peel concentrations .