Abstract

The color changes of several dyes were studied in the presence of detergent micelles. Changes in the absorption maxima of the dyes and alterations in their equilibrium constants were measured in solvents of varying polarity. Similar effects were measin detergent micelles as a result of the hydrophobic microenvironment experienced by the micelle-bound dye. In addition, microenvironmental electrostatic effects were observed. The latter cause large changes in the equilibrium constants of the dyes as a result of the juxtaposition of charged functional groups in the detergent micelles.

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