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Simulation applied to the gel filtration of surfactants

Part IV: Mixture of two ionic surfactants

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Summary

In this paper is described a simulation technique applicable to the gel filtration of a mixture of two ionic surfactants. The applicability was tested by using a mixture of sodium decyl and docecyl sulfates. The theoretical elution curves showed good agreement with the experimental ones. It can be shown not only experimentally but also theoretically that the gel filtration is a powerful and convenient method to isolate the component which has a lower CMC from the mixture. The separation of components is achieved more effectively in a mixture of ionic surfactants than in a mixture of nonionic surfactants. The difference is due to ionic effect, on which a brief discussion is presented.

Zusammenfassung

In dieser Mitteilung wird eine Simulationstechnik für die Gelfiltration eines Gemisches von zwei ionischen oberflächenaktiven Substanzen beschrieben und mit einem Gemisch von Natrium-Decyl- und Dodecylsulfat geprüft. Die theoretischen Elutionskurven zeigten gute Übereinstimmung mit den experimentellen Kurven. Es wird gezeigt, daß die Gelfiltration eine zweckmäßige und bequeme Methode zur Isolierung der Komponente mit niedrigeren KMK aus dem Gemisch ist. Die Trennung zweier Komponenten gelingt besser aus einem Gemisch von ionischen oberflächenaktiven Substanzen als aus einem solchen von nichtionischen.

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References

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Nakagawa, T., Jizomoto, H. Simulation applied to the gel filtration of surfactants. Kolloid-Z.u.Z.Polymere 239, 606–610 (1970). https://doi.org/10.1007/BF02133318

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  • DOI: https://doi.org/10.1007/BF02133318

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