Article ID Journal Published Year Pages File Type
1234047 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2010 6 Pages PDF
Abstract

Electronic absorption spectra of Oxazine 750 dye in aqueous solutions and in polyacrylamide hydrogel matrix with different structural composition were studied at room temperature. The transport and the solute–solute interactions of the ionic dye in aqueous solutions across the hydrophilic gels were investigated via exploring spectral properties of the dye-loaded hydrogel. The nature of the dye pair interactions in these media was discussed using the Kasha exciton theory. In addition, the monomer–dimer equilibrium of Oxazine 750 in hydrogels with different compositional percentage has been determined by means of UV–vis spectroscopy and least square fitting methods.

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Physical Sciences and Engineering Chemistry Analytical Chemistry
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