Mucic, Nenad ; Skrbic, Jelena ; Bucko, Sandra ; Petrovic, Lidija ; Katona, Jaroslav ; Fainerman, Valentin B. ; Aksenenko, Eugene V. ; Schneck, Emanuel ; Miller, Reinhard (2022)
Adsorption of Equimolar Mixtures of Cationic and Anionic Surfactants at the Water/Hexane Interface.
In: Colloids and Interfaces, 2022, 5 (1)
doi: 10.26083/tuprints-00017459
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
In mixed solutions of anionic and cationic surfactants, called catanionics, ion pairs are formed which behave like non-ionic surfactants with a much higher surface activity than the single components. In equimolar mixtures of NaCnSO4 and CmTAB, all surface-active ions are paired. For mixtures with n + m = const, the interfacial properties are rather similar. Catanionics containing one long-chain surfactant and one surfactant with medium chain length exhibit a strong increase in surface activity as compared with the single compounds. In contrast, catanionics of one mediumand one short chain surfactant have a surface activity similar to that of the medium-chain surfactant alone. Both the Frumkin model and the reorientation model describe the experimental equilibrium data equally well, while the adsorption kinetics of the mixed medium- and short-chain surfactants can be well described only with the reorientation model.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Mucic, Nenad ; Skrbic, Jelena ; Bucko, Sandra ; Petrovic, Lidija ; Katona, Jaroslav ; Fainerman, Valentin B. ; Aksenenko, Eugene V. ; Schneck, Emanuel ; Miller, Reinhard |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Adsorption of Equimolar Mixtures of Cationic and Anionic Surfactants at the Water/Hexane Interface |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Colloids and Interfaces |
| Jahrgang/Volume einer Zeitschrift: | 5 |
| (Heft-)Nummer: | 1 |
| Kollation: | 16 Seiten |
| DOI: | 10.26083/tuprints-00017459 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/17459 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung |
| Kurzbeschreibung (Abstract): | In mixed solutions of anionic and cationic surfactants, called catanionics, ion pairs are formed which behave like non-ionic surfactants with a much higher surface activity than the single components. In equimolar mixtures of NaCnSO4 and CmTAB, all surface-active ions are paired. For mixtures with n + m = const, the interfacial properties are rather similar. Catanionics containing one long-chain surfactant and one surfactant with medium chain length exhibit a strong increase in surface activity as compared with the single compounds. In contrast, catanionics of one mediumand one short chain surfactant have a surface activity similar to that of the medium-chain surfactant alone. Both the Frumkin model and the reorientation model describe the experimental equilibrium data equally well, while the adsorption kinetics of the mixed medium- and short-chain surfactants can be well described only with the reorientation model. |
| Freie Schlagworte: | surfactant adsorption, catanionic surfactants, water/hexane interface, interfacial tension, drop profile analysis tensiometry, effect of alkyl chain length, thermodynamic model |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-174592 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 500 Naturwissenschaften und Mathematik > 540 Chemie 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Physik Kondensierter Materie (IPKM) |
| Hinterlegungsdatum: | 04 Feb 2022 14:40 |
| Letzte Änderung: | 07 Feb 2022 08:47 |
| PPN: | |
| Zugehörige Links: | |
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