Alcohols solubilization

The effect of initial fatty alcohol location on the formation of an interfacial layer is depicted in Figure 2. With the fatty alcohol solubilized in the oil phase, no "tails" formed at the interface between the oil-alcohol droplet and an aqueous solution of lOmM SLS. Since microemulsions are usually prepared with the fatty alcohol solubilized in the oil phase and miniemulsions are not, the mechanism of interfacial layer formation and hence stabilization for micro- and miniemulsions appears to be different. 

It is also of considerable interest to look at concentration dependence from another angle by focusing on the fraction of alcohol solubilized by the micelles. If the distribution coefficient does not vary with surfactant concentration, it is obvious that the fraction of alcohol solubilized does, as demonstrated by Equation 6.8. Here, it is rearranged taking into account that the alcohol is at infinite dilution ... 

It appears that for each snrfactant system, AG° is a linear fnnction of the number of carbon atoms of the solubihzate see, for example, the work by DeLisi and co-workers who have stndied alcohol solubilization in SDS, dodecyltrimethylammonium bromide, and dodecyldimethylamine oxide.In this work we prefer to plot AG" as a fimction of the niunber of CH2 groups of the solubilizate. Tables 6.2 through 6.6 contain data for several homologous series in anionic, cationic, and nonionic surfactants, and on this basis the following relationship has been tested ... 

If we look at the absolute values of partial molar volumes and compressibilites of alcohols solubilized in micelles, it appears that for the lower alcohols, up to heptanol, volumes and compressibilities exhibit lower values in SDS than in carboxylates. It also appears that the partial molar compressibilities of these alcohols are higher than the molar compressibility of the pure alcohols when solubilized in the carboxylate micelles and lower when solubilized in SDS. 

HD Eutanol . [Henkd/Emery/Cospha] Oleyl alcohol solubilizer for dyes and waxes, emollient... 

PEG-25 stearamine PEG-40 stearamine PEG-35 tallowamine PPG-6-decyltetradeceth-12 PPG-6-decyltetradeceth-20 PPG-6-decyltetradeceth-30 Stearyl phosphate Sucrose distearate Sucrose stearate solubilizer, pesticides Methyl-P-cyclodextrin Nonoxynol-9 Nonyl nonoxynol-49 Nonyl nonoxynol-10 phosphate Oleth-5 Polysorbate 60 Sodium diisopropyl naphthalene sulfonate solubilizer, petrochemicals Oleyl alcohol solubilizer, petroleum Meroxapol 105 Nonoxynol-1 Nonoxynol-3 Nonoxynol-5 Nonoxynol-13 Nonoxynol-60 PEG-20 oleamine PEG-25 stearamine PEG-40 stearamine PEG-35 tallowamine... 

Butyl alcohols solubilize the ocytocic substances only from extracts treated with acids at a pH close to 3.9, at which pH proteins precipitate. The same phenomenon is true of hog pituitary. This behavior is due to the ocytocin-protein-complex which may represent the mother molecule of Van Dyke. 

Vitamin A inhibits /ff-glucuroiiidase of rat colon in vitro. This effect is not dejiendent on the integrity of particulate membrane and is unaltered by removal of lipid from the enzyme, suggesting a direct action on the enzyme protein. Also, the kinetics of aryl sulfatase and /3-gIucuronida.se arc altered in the presence of vitamin A alcohol. Solubilized, 8-glucurotiidase of particu)at( f raction.s iivin rat. small intestine, kidney, and liver. showed the same res[)onse to vitamin A as the colon enzyme (Hsu and Ta[)pcl, 1965). 

Uses Blocking agent silylating reagent for amino-acids, amides, phenols, carboxylic acids, ureas, ends, imides, alcohols solubilizer in polar/nonpolar soivs. B-8880-50% [Ethox]... 

The results obtained in this study clearly show the complexity of the size and shape of CTAB micelles in KBr solution with the addition of benzyl alcohol. A small amount of alcohol solubilized in the interfacial region of the aggregates renders rodlike micelles larger and longer. As a result of this process, the viscosity of the dilute surfactant systems will rise and the viscoelasticity of concentrated solutions will increase due to the formation of a network structure of the micelles. When the alcohol content is higher, it will be solubilized in the palisades of the micelles and the rodlike micelles transform gradually into smaller oblate spheroid ones. Both the viscosity of dilute surfactant systems and the viscoelasticity of concentrated micellar systems will decrease. 

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