Abstract
Vapor pressures of two fragrance materials in aqueous solutions of polyvinylpyrrolidone and sodium xylenesulfonate were determined using gas chromatography of head space samples. The association between polymer and hydrotrope was evaluated from the values of surface tension and electrical conductance. The result showed an association of the hydrotrope and the polymer leading to enhanced surface tension after addition of polymer to hydrotope solutions in a certain hydrotope concentration range. The polymer hydrotope association structure resulted in a reduction of fragrance vapor pressure due to solubilization of the fragrance into the association structure.
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