Please use this identifier to cite or link to this item: https://doi.org/10.1007/s11743-006-5003-2
Title: Solubilization of selected polycyclic aromatic compounds by nonionic surfactants
Authors: Swe, M.M.
Yu, L.E. 
Hung, K.-C.
Chen, B.-H.
Keywords: Light scattering
Micelle
Nonionic surfactant
Polycyclic aromatic compound (PAC)
Solubility
Solubilization
Issue Date: Sep-2006
Citation: Swe, M.M., Yu, L.E., Hung, K.-C., Chen, B.-H. (2006-09). Solubilization of selected polycyclic aromatic compounds by nonionic surfactants. Journal of Surfactants and Detergents 9 (3) : 237-244. ScholarBank@NUS Repository. https://doi.org/10.1007/s11743-006-5003-2
Abstract: Solubilization of selected polycyclic aromatic compounds (PAC) by biodegradable nonionic surfactants, Tergitol 15-S-X (X = 7 or 9) and Neodol 25-7, was investigated and correlated with micellar properties of these surfactants. These PAC include dibenzofuran, phenanthrene, acenaphthene, fluoranthene, and 9-chloroanthracene. Tergitol surfactants are mixtures of secondary ethoxylated alcohols, and Neodol 25-7 is a mixture of similar species but has the alcohol group in the primary position. These surfactants have the same chain length of hydrophobic tails and similar numbers of ethylene oxides. The results show that the Neodol surfactant yields micelles having larger hydrophobic core volume and renders a higher solubilization capacity for the PAC solubilizates in comparison with Tergitol surfactants. In general, aggregation numbers and micellar sizes both increase at ele-vated temperatures still below the cloud point. The micellewater partition coefficients of these PAC by the nonionic surfactants were well correlated to their octanol-water partition coefficients. Moreover, an estimated log KOW value of 9-chloanthracene is 4.78. COPYRIGHT © 2006 BY AOCS PRESS.
Source Title: Journal of Surfactants and Detergents
URI: http://scholarbank.nus.edu.sg/handle/10635/87641
ISSN: 10973958
DOI: 10.1007/s11743-006-5003-2
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