Synthesis and Study of Optical Properties of (PMMA-CrCl<sub>2</sub>) Composites

Abstract

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 CrCl₂. The absorption coefficient, extinction coefficient, refractive index and real and imaginary parts of dielectric constants are increasing with the increase of the CrCl₂ concentration. The energy band gap is decreased with the increase of the CrCl₂ concentration.