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- Title
Hydrophilic gel composition effect on the molecular association and spectroscopic behavior of rhodamine B.
- Abstract
Electronic absorption spectra of rhodamine B dye in aqueous solutions and in a polyacrylamide hydrogel matrix with different structural compositions were studied at room temperature. The transport and the solute-solute interactions of rhodamine B in aqueous solutions across the hydrophilic gels were investigated via exploration of the 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 rhodamine B molecules in hydrogels with different compositional percentages was studied by means of UV-vis spectroscopy and least-squares fitting methods.
- Subjects
HYDROPHILIC compounds; POLYACRYLAMIDE; RHODAMINE B; ABSORPTION spectra; AQUEOUS solutions; DYES &; dyeing; HOST-guest chemistry; COLLOIDS
- Publication
Canadian Journal of Chemistry, 2012, Vol 90, Issue 9, p776
- ISSN
0008-4042
- Publication type
Article
- DOI
10.1139/v2012-055