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The Thermodynamic Properties of Dynol-604/AOT Mixed Reverse Micelles in Isooctane

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Abstract

The volumetric properties of the mixed surfactants bis(2-ethylhexyl) sodium sulfosuccinate and ethoxylated-2,5,8,11-tetramethyl-6-dodecyne-5,8-diol (Dynol-604) at various compositions in isooctane have been studied by density measurements at 303.15 K. The apparent specific volumes and the critical reverse micelle concentrations of the binary mixed surfactants were determined. The results were used to calculate the compositions, excess properties of mixing, activity coefficients and the interaction parameter between the two surfactants in the mixed micelles, based on Rubingh’s formalism.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Projects 21173080, 21373085, 21303055, 21403098) and the Fundamental Research Funds for the Central Universities (WJ1516001).

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Authors and Affiliations

  1. School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China

    Changfei Du, Jiequn Wu, Xue Wang & Weiguo Shen

  2. Department of Chemistry, Lanzhou University, Lanzhou, 730000, Gansu, China

    Peizhu Zheng & Weiguo Shen

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  1. Changfei Du
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  2. Jiequn Wu
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  3. Xue Wang
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  4. Peizhu Zheng
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  5. Weiguo Shen
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Correspondence to Weiguo Shen.

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Du, C., Wu, J., Wang, X. et al. The Thermodynamic Properties of Dynol-604/AOT Mixed Reverse Micelles in Isooctane. J Solution Chem 45, 1031–1042 (2016). https://doi.org/10.1007/s10953-016-0485-7

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  • DOI: https://doi.org/10.1007/s10953-016-0485-7

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