A direct comparison of the solubilization of the dye, Oil Blue N, by sodium 10-undecenoate micelles and poly(sodium 10-undecenoate) was made by Beer's Law analysis of light absorbed by the dye in aqueous solution. Sodium 10-undecenoate showed typical micelle behavior with essentially no dye absorption below the critical micelle concentration, cmc, and a constant loading capacity up to twice the cmc. In contrast, the polymer solubilized the dye at all concentrations tested and showed an effective cmc of zero, indicating a micelle-like solubilization function for the polymer independent of concentration. The loading capacity of the polymer was less than half that of the monomeric micelle indicating the stability of the polymer/dye complex to be lower than that of the micelle/dye complex.

Effects of polymerization on stability and loading capacity of sodium 10-undecenoate micelles

246th National Meeting (2013)

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