The photophysical characterization (absorption and emission spectra, fluorescence quantum yields, preferential solvation) of a polymer containing bisphenol A and 1,3,4-oxadiazole group (OxBisA) was studied in a wide variety of solvents. Influence of the medium characteristics on photophysical behavior was examined. The solvatochromic shifts of the spectral bands were analyzed by multiple parametric regression analysis in terms of solvent parameters of two new solvent scales (Catalan and new Laurence). Also, changes in the electronic emission spectral characteristics of OxBisA molecules were studied in chloroform solution in the presence of various amount of SnO2 and NiO oxide nanoparticles. The fluorescence intensity of polymer OxBisA gradually decreased with increases of oxide nanoparticles concentrations. The emission intensity of studied compound was sensitive to the compositions of the microheterogeneous media (involving different chloroform:methanol ratios).
Journal of Luminescence – Elsevier
Published: Aug 1, 2016
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