Influence of Open-Porous System on the Solid-State Phase Transition in 1-Octadecene

  • O. M. Alekseev Taras Shevchenko National University of Kyiv, Faculty of Physics, Chair of Molecular Physics
  • S. O. Alekseev Taras Shevchenko National University of Kyiv, Faculty of Physics, Chair of Molecular Physics
  • Yu. F. Zabashta Taras Shevchenko National University of Kyiv, Faculty of Physics, Chair of Molecular Physics
  • M. M. Lazarenko Taras Shevchenko National University of Kyiv, Faculty of Physics, Chair of Molecular Physics
  • K. I. Hnatiuk Taras Shevchenko National University of Kyiv, Faculty of Physics, Chair of Molecular Physics
  • M. V. Lazarenko National University of Food Technologies
  • R. V. Dinzhos V.O. Sukhomlynskyi Mykolayiv National University
  • M. S. Simeonov St. Kliment Ohridski University of Sofia
Keywords: solid-state phase transition, nanocrystals, porous silica gel

Abstract

The solid-state phase transition in the silica gel–1-octadecene system has been studied at various temperatures with the help of differential scanning calorimetry and FTIR spectroscopy. Silica gels KSK-2.5, KSS-4, and Silica Gel 60 with different surface parameters are used. The temperature of the solid-state phase transition in the silica gel–1-octadecene system is shown to linearly depend on the ratio between the pore surface area and the pore volume. The energy characteristics of 1-octadecene nanocrystals in the surface layer are calculated in the framework of a thermodynamical model of crystal melting in pores.

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Published
2019-05-16
How to Cite
Alekseev, O., Alekseev, S., Zabashta, Y., Lazarenko, M., Hnatiuk, K., Lazarenko, M., Dinzhos, R., & Simeonov, M. (2019). Influence of Open-Porous System on the Solid-State Phase Transition in 1-Octadecene. Ukrainian Journal of Physics, 64(4), 340. https://doi.org/10.15407/ujpe64.4.340
Section
Surface physics