Study of the Structural Properties of Polymers Doped with Fluorescence Organic Dyes دراسة الخواص التركيبية للبوليمر المطعم بالصبغات العضوية المتفلورة -

Abstract

The ultimate objective of this work is to prepare samples from rhodamine C dye doped with polymethylmethacrylate (PMMA), then dissolving the samples in chloroform solvent with various concentrations: (1×10-5, 5×10-5, 1×10-4 M) at room temperature with equalled volume percentages of dye and polymer. The structural properties of the polymers, dye and doped dye, and the correlation of atoms and the identification of the type of polymer were studied. Results showed that the absorption spectra were shifted toward the shorter wavelengths (Blue shift) in the rate of (5.35nm), while the fluorescence peak was shifted toward the longer wavelengths (Red shift) in the rate of (9.95nm). The increased intensity of both absorption and fluorescence with increased concentration in the rate of (0.48 a.u), (125.74 a.u) respectively, which increases the absorption