Status of aqueous surfactant phase science |
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Authors: | Robert G Laughlin |
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Affiliation: | (1) Miami Valley Laboratories, The Procter & Gamble Company, 45239 Cincinnati, Ohio |
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Abstract: | Recent phase studies of several surfactant-water systems, using new or refined methods, have revealed significant errors in
earlier phase diagrams. These diagrams had been determined largely using methods based on the isoplethal phase studies principle.
This principle has inherent limitations which do not exist in isothermal methods.
Isothermal nuclear magnetic resonance and refined calorimetric methods have been extensively used in recent surfactant phase
studies. Methods based on the new lyotrope gradient (swelling) principle show great promise as a means of improving the efficiency
and quality of surfactant phase studies. |
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Keywords: | Gradient methods isoplethal isothermal liquid crystal phases phase science phase study methods surfactants swelling |
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