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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 15, Number 3
BKCSDE 15(3)
March 20, 1994 

An Investigation of the Environment of Some Aromatic Alcohol Solubilized Aqueous Ionic Micellar Solutions by Proton Magnetic Resonance Spectroscopy
Jong Jae Chung*, Jung-Bu Kang, Kyung Hee Lee, Byung Il Seo
Chemical shifts in aqueous sodium dodecylsulfate(SDS) micellar solution solublizing phenol, catechol, resorcinol, hydroquinone have been measured to investigate solubilization properties. Proton nuclear magnetic resonance frequencies of solubilizates as well as those of the α-methylene, middle methylene and terminal methyl of SDS shift linearly as a function of solubilizate concentration. From the plots of observed chemical shift (ν) vs solubilizate concentration, slope (a) and solubilizate free chemical shift (νo) are obtained. They are very informative to solubilization site of the systems. Catechol and phenol solubilized SDS and catechol solubilized dodecylpyridinium chloride(DPC), dodecyltrimethylammonium bromide(DTAB) systems are studied using the same method to compare head group effect and middle methylene proton signal splitting. It is proposed that phenol and catechol are inserted into micellar interior and the number of methylenes assigned to the higher field peaks is 5.0±0.5.
198 - 204
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