Study of The Optical Constants of the PMMA∕PC Blends

Characterization of (Polyvinyl alcohol-polyacrylamide -Pomegranate Peel ) Compositeso as Biocomposites Materials

“…The extinction coefficient of composite polymer is increased with the increase of the percentages of potassium chloride as result to the increase the loss of energy of incident light by the particles of composites [7,8]. The dielectric constants (real (ε 1 ) and imaginary (ε 2 ) parts) are defined by [9]: Figures (7) and (8) show the variation of real and imaginary parts of dielectric constants of composites with different concentration of filler. From these figures, the real and imaginary parts of dielectric constants are increased with the increase of the concentration of the pomegranate peel which attributed to increase the scattering and loss of Characterization of (Polyvinyl alcohol-polyacrylamide-Pomegranate Peel ) Compositeso as Biocomposites Materials energy of light in the material which increase the refractive index and extinction coefficient [9].…”

Simultaneous Determination of Refractive Index and Thickness of Submicron Optical Polymer Films from Transmission Spectra

“…In binary blending, the transparency of the mixture decreases as the content of the disperse phase and the difference between the refractive indices of both polymers increase [ 28 ]. However, it has been shown that the extinction coefficient is maintained at a low level (<10 −5 ) by adding a small proportion of PC to the PMMA, with indices that are appreciably different [ 29 ]. Data corresponding to the blend PMMA/20%PC [ 30 ] are included in Table 1 .…”

Structural and Optical Properties of (PMMA/ZrO/Ag) New Nanocomposites for Optoelectronics and UV Detectors Applications

“…The refractive index represents the ratio of the electromagnetic wave speed in vacuum to the electromagnetic wave speed inside the material. Equation (5) gives the law used to calculate the refractive index [71]:…”