Effect of 1-Pentanol on the Thermodynamics of the Micellization of Hexadecyltrimethylammonium Bromide in Aqueous Solutions View Full Text


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Article Info

DATE

2018-09

AUTHORS

A. A. Velikov

ABSTRACT

The thermodynamic parameters (ΔH, ΔG, and ΔS) of the micellization of hexadecyltrimethylammonium bromide (CTAB) in aqueous solutions of 1-pentanol at 298.15 and 313.15 K are measured via micelle destruction. Critical micelle concentrations CMC 1 and CMC 2 at different concentrations of pentanol are determined. It is found that adding pentanol to a solution at 313.15 K does not affect the entropy of micelle formation, which is ΔS in pure water. A linear compensation relationship between the ΔH and ΔG values is revealed. It is shown that the entropy of a solution at 298.15 K falls upon adding pentanol, and the compensation relationship between the ΔH and ΔS values is in this case similar to the one obtained upon varying the temperature of a solution. More... »

PAGES

1857-1859

References to SciGraph publications

  • 2015-02. High-sensitivity titration microcalorimeter in RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
  • 2017-07. Thermodynamics of hexadecyltrimethylammonium bromide micelle formation in RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
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    http://scigraph.springernature.com/pub.10.1134/s0036024418090327

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    http://dx.doi.org/10.1134/s0036024418090327

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