On the Multi-Layered Adsorption of Alcanols in the Vicinity of Liquid–Vapor Transition at the Saturated Hydrocarbon–Water Interface

Мұқаба

Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Рұқсат ақылы немесе тек жазылушылар үшін

Аннотация

Structure of adsorption layer of long-chain monoatomic alcohols: 1-dodecanol and 1-tetracosanol at the interfaces n-hexane – water and n-hexadecane – water in the vicinity of “liquid – vapor” thermotropic phase transition is investigated by the method of X-ray reflectometry at synchrotron source. Model-independent structural data obtained on the adsorption layers under investigation deviate considerably from the structural parameters which have been proposed previously within a model-based representation and discussed in previous publications on said systems. It is shown that in the low-temperature mesophase the adsorption film consists of a Gibbs monolayer, a transitional liquid region with thickness of two to three monolayers ~50 Å and an extended (wide up to 200 Å) layer of micelles. Presence of a plane of the closest approach of micellar layer to the adsorption film at the interface is established. Transition to the high-temperature mesophase is followed by liquefying and partial evaporation of alcanol film along with observed depletion of micellar layer down to its complete disappearance.

Негізгі сөздер

Толық мәтін

Рұқсат жабық

Авторлар туралы

A. Tikhonov

P.L. Kapitza Institute for Physical Problems, RAS

Хат алмасуға жауапты Автор.
Email: tikhonov@kapitza.ras.ru
Ресей, Moscow

Yu. Volkov

Kurchatov Institute

Email: volkov.y@crys.ras.ru
Ресей, Moscow

Әдебиет тізімі

  1. Gibbs J.W. // Collected Works, Vol. 1: Thermo-dynamics. N.Y.: Dover, 1961. P. 219.
  2. Jasper J.J., Houseman B.L. // J. Phys. Chem. 1963. V. 67. P. 1548. https://www.doi.org/10.1021/j100801a035
  3. Motomura K. // J. Colloid Interface Sci. 1978. V. 64. P. 348. https://www.doi.org/10.1016/0021-9797(78)90372-7
  4. Lin M., Ferpo J.L., Mansaura P., Baret J.F. // J. Chem. Phys. 1979. V. 71. P. 2202. https://www.doi.org/10.1063/1.438551
  5. Hayami Y., Uemura A., Ikeda M., Aratono M., Motomura K. // J. Colloid Interface Sci. 1995. V. 172. P. 142. https://www.doi.org/10.1006/jcis.1999.6536
  6. Uredat S., Findenegg G.H. // Langmuir. 1999. V. 15. P. 1108. https://www.doi.org/10.1021/la981264q
  7. Aratono M., Murakami D., Matsubara H., Takiue T. // J. Phys. Chem. B. 2009. V. 113. P. 6347. https://www.doi.org/10.1021/jp9001803
  8. Tikhonov A.M., Pingali S.V., Schlossman M.L. // J. Chem. Phys. 2004. V. 120. P. 11822. https://www.doi.org/10.1063/1.1752888
  9. Zhang Z., Mitrinovic D.M., Williams S.M., Huang Z., Schlossman M.L. // J. Chem. Phys. 1999. V. 110. P. 7421. https://www.doi.org/10.1063/1.478644
  10. Pingali S.V., Takiue T., Guangming L., Tikhonov A.M., Ikeda N., Aratono M., Schlossman M.L. // J. Dispersion Sci. Technol. 2006. V. 27. P. 715. https://www.doi.org/10.1080/01932690600660582
  11. Tikhonov A.M., Schlossman M.L. // J. Phys.: Condens. Matter 2007. V. 19. P. 375101. https://www.doi.org/10.1088/0953-8984/19/37/375101
  12. Takiue T., Matsuo T., Ikeda N., Motomura K., Aratono M. // J. Phys. Chem. B 1998. V. 102. P. 4906. https://www.doi.org/10.1021/jp980292e
  13. Тихонов А.М., Асадчиков В.Е., Волков Ю.О., Нуждин А.Д., Рощин Б.С. // ПТЭ. 2021. № 1. С. 146. https://www.doi.org/10.31857/S0032816221010158
  14. Schlossman M.L., Synal D., Guan Y., Meron M., Shea-McCarthy G., Huang Z., Acero A., Williams S.M., Rice S.A., Viccaro P.J. // Rev. Sci. Instrum. 1997. V. 68. P. 4372. https://www.doi.org/10.1063/1.1148399
  15. Kozhevnikov I.V. // Nucl. Instrum. Methods. Phys. Res. A. 2003. V. 508. P. 519. https://www.doi.org/10.1016/S0168-9002(03)01512-2
  16. Kozhevnikov I.V., Peverini L., Ziegler E. // Phys. Rev. B. 2012. V. 85. P. 125439. http://dx.doi.org/10.1103/PhysRevB.85.125439
  17. Becher P. Emulsions: Theory and Practice, 3rd ed. Oxford: Oxford University Press, 2001. 514 p.
  18. Smith G.N., Brown P., Rogers S.E., Eastoe J. // Langmuir. 2013. V. 29. P. 3252. https://www.doi.org/10.1021/la400117s
  19. Tikhonov A.M., Li M., Schlossman M.L. // J. Phys. Chem. B. 2001. V. 105. P. 8065. https://doi.org/10.1021/jp011657p
  20. Bertrand E., Dobbs H., Broseta D., Indekeu J., Bonn D., Meunier J. // Phys. Rev. Lett. 2000. V. 85. P. 1282. https://www.doi.org/10.1103/PhysRevLett.85.1282

Қосымша файлдар

Қосымша файлдар
Әрекет
1. JATS XML
Жүктеу
2. Fig. 1. Angular dependences of the reflection coefficient R from dodecanol at the n-hexane-water interface, normalised to the Fresnel function RF, in the low-temperature (T = 8.0°C, circles; T = 20.0°C, squares) and high-temperature (T = 55.1°C, triangles) phases. The lines indicate the calculated reflection curves

Жүктеу (111KB)
Метадеректер
3. Fig. 2. Angular dependences of the reflection coefficient R from tetracosanol at the n-hexadecane-water interface, normalised to the Fresnel function RF, in the low-temperature (T = 50.8°C, circles), transition (T = 53.0°C, squares) and high-temperature (T = 81.9°C, triangles) phases. Lines indicate calculated reflection curves

Жүктеу (117KB)
Метадеректер
4. Fig. 3. Reconstructed electron concentration profiles ρ(z) for the n-hexane-water interface, normalised to the electron concentration in water at normal conditions ρw = 0.333 e/Å3, in the low-temperature (T = 8.0°C, solid line; T = 20.0°C, dashed line) and high-temperature (T = 55.1°C, dashed line) phases

Жүктеу (84KB)
Метадеректер
5. Fig. 4. Reconstructed electron concentration profiles ρ(z) for the n-hexadecane-water interface, normalised to the electron concentration in water at normal conditions ρw = 0.333 e/Å3, in the low-temperature (T = 50.8°C, solid line), transition (T = 53.0°C, dashed line) and high-temperature (T = 81.9°C, dotted line) phases

Жүктеу (92KB)
Метадеректер

© Russian Academy of Sciences, 2024