Interfacial tension of alkylglucosides in different APG/oil/water systems
| العنوان: | Interfacial tension of alkylglucosides in different APG/oil/water systems |
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| المؤلفون: | Gerhard H. Findenegg, W. von Rybinski, E. M. Kutschmann, Dieter Nickel |
| المصدر: | Colloid and Polymer Science. 273:565-571 |
| بيانات النشر: | Springer Science and Business Media LLC, 1995. |
| سنة النشر: | 1995 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Chromatography, Aqueous solution, Polymers and Plastics, Chemistry, Electrolyte, Decane, Surface tension, Partition coefficient, chemistry.chemical_compound, Colloid and Surface Chemistry, Hydrocarbon, Pulmonary surfactant, Chemical engineering, Phase (matter), Materials Chemistry, Physical and Theoretical Chemistry |
| الوصف: | The interfacial performance of pure alkylglucosides (C8G1, C10G1 and C12G1) and of technical grade alkylpolyglucoside (APG) surfactants was investigated in three different water/oil systems (decane, isopropylmyristate and 2-octyldodecanol). From the dependence of the interfacial tension on the surfactant concentration below the CMC the cross-sectional area of the molecules at the decane/water interface was estimated. The plateau values of the interfacial tension at the CMCσc are independent of temperature and almost independent of added electrolyte in the decane/water system. The ability of the surfactants to lower the oil/water interfacial tension is most pronounced for the nonpolar oil. The partition coefficient of the surfactant between oil and water phase (kc) was estimated from the CMC and the observed break point of the interfacial tension after equilibration of the two phases. In decane/water,kc is nearly zero for all surfactants studied. For the polar oils,kc increases with the chain length of the surfactant up tokc≈10 for C12G1 in octyldodecanol/water. The values ofσc in the different oil/water systems appear to be correlated withkc and exhibit a minimum nearkc=1. |
| تدمد: | 1435-1536 0303-402X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::33def9d8c6de359f8f8b25571bfb3262 https://doi.org/10.1007/bf00658686 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........33def9d8c6de359f8f8b25571bfb3262 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 14351536 0303402X |
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