Solubilization of synthetic perfumes by nonionic surfactants

• Published in: Journal of colloid and interface science Vol. 152; no. 2; pp. 402 - 409
• Main Authors: Tokuoka, Yoshikazu, Uchiyama, Hirotaka, Abe, Masahiko, Ogino, Keizo
• Format: Journal Article
• Language: English
• Published: San Diego, CA Elsevier Inc 01.09.1992; Elsevier
• Subjects: Chemistry; Colloidal state and disperse state; Exact sciences and technology; General and physical chemistry; Micelles. Thin films; Cloud point; Non ionic surfactant; Perfume; Concentration effect; Micelle; Partition coefficient; Aqueous solution; Experimental study; Oligomer; Solubilization
• ISSN: 0021-9797; 1095-7103
• DOI: 10.1016/0021-9797(92)90042-K

The solubilization of synthetic perfumes (eugenol, linalool, benzyl acetate, α-Ionone, α-hexylcinnamaldehyde, and d-limonene) by hexadecyl polyoxyethylene ethers (C 16POE n , n = 10, 20, 30, and 40) has been studied in terms of cloud point, maximum additive concentration, solubilizing capacities, distribution coefficient, and micellar size. The greater the hydrophilic properties of synthetic perfumes, the more the cloud points of C 16POE 10 solution are decreased. The maximum additive concentration and solubilizing power are increased with decreasing polyoxyethylene chain length, except for eugenol and linalool. The distribution coefficients of eugenol, linalool, and benzyl acetate between micelle and bulk phase are increased as the number of ethylene oxides in C 16POE n decreases. The diameters of micelles containing solubilized synthetic perfumes are increased with increasing concentration of synthetic perfumes dissolved. Furthermore, for C 16POE 10 solution, the diameters of micelles solubilizing eugenol and linalool are increased substantially in the vicinity of each maximum additive concentration.