Abstract
The limit of water solubilization in solutions composed of a commercial surfactant, Laureth 4 (Brij®30), and a fragrance combination of phenethyl acetate (PEAc) and phenethyl alcohol (PEA) was determined. The vapor pressures of both the fragrances along these borders and along the fragrance-surfactant axis were measured. The variation of the fragrance vapor pressures for the surfactant/fragrance solution series with or without water was related to surfactant self-association, to formation of inverse micelles, and to the competition between PEAc and PEA molecules for the surfactant polar groups. The results show that PEA and PEAc almost ideally dissolved in each other, but in the presence of the surfactant, the addition of PEA significantly increases the chemical potential of PEAc.Key wordsSurfactantsfragrancesvapor pressureliquid crystalsemulsions
Published Version
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