Bulletin of the Korean Chemical Society

  • 제22권9호
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  • Pages.1009-1014
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  • 2001
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Mixed Micellization of Anionic Ammonium Dodecyl Sulfate and

  • 발행 : 20010900
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초록

In aqueous mixtures of cationic OTAC (octadecyl trimethyl ammonium chloride) and anionic ADS (ammonium dodecyl sulfate) surfactants, mixed micelles were formed at low (< 0.2 wt %) total surfactant concentrations. For these mixtures mixed micelliza tion and interaction of surfactant molecules were examined. Mixed critical micelle concentration (CMC), thermodynamic potentials of micellization, and minimum area per surfactant molecule at the interface were obtained from surface tensiometry and electrical conductometry. The mixed micellar compositions and the estimation of interacting forces were determined on the basis of a regular solution model. The CMCs were reduced, although not substantial, and synergistic behavior of the ADS and OTAC in the mixed micelles was observed. The CMC reductions in this anionic/cationic system were comparable to those in nonionic/anionic surfactant systems. The interaction parameter $\beta$ of the regular solution model was estimated to be -5 and this negative value of $\beta$ indicated an overall attractive force in the mixed state.

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  2. Interaction in Mixed Micellization of Sodium N-Tetradecanoylsarcosinate with Ionic and Nonionic Surfactants vol.26, pp.5, 2005, https://doi.org/10.1081/dis-200057629
  3. Mixtures of anionic and cationic surfactants with single and twin head groups: Adsorption and precipitation studies vol.9, pp.1, 2001, https://doi.org/10.1007/s11743-006-0370-2
  4. Effects of Linear Alkylbenzene Sulfonate on the Sorption of Brij 30 and Brij 35 onto Aquifer Sand vol.42, pp.5, 2001, https://doi.org/10.1021/es0720964
  5. Cyclic voltammetry and viscosity measurements of aggregated assemblies of anionic surfactants with nonionic surfactants and triblock copolymers vol.289, pp.1, 2001, https://doi.org/10.1007/s00396-010-2323-6
  6. Synthesis of two biofriendly anionic surfactants (N-n-decanoyl-L-valine and N-n-decanoyl-L-leucine) and their mixed micellization with nonionic surfactant Mega-10 in Tris-buffer medium at pH 9 vol.4, pp.24, 2001, https://doi.org/10.1039/c3ra44677h
  7. Synergism and Performance for Systems Containing Binary Mixtures of Anionic/Cationic Surfactants for Enhanced Oil Recovery vol.20, pp.1, 2001, https://doi.org/10.1007/s11743-016-1892-x