Abstract:
Methods of equilibrium chemical thermodynamics have been used to simulate laws of the influence of geometric factors (pore shape and volume) on the phase equilibria is stratifying polymer solutions in porous matrices. Using the example of the phase separation in a liquid polybutadiene–polystyrene system, it is established that deformation of the porous matrix determining the geometric characteristics of pores can be used to control the mutual solubilities of components and the volumes and thermodynamic stability of coexisting equilibrium phases. Significant deformations of the matrix lead to suppression of the phase separation in pores and make any solution compositions possible (up to equimolar mixtures).
This work was performed in the framework of a state order for the Institute of Organometallic Chemistry (Nizhny Novgorod) and supported by the Russian Foundation for Basic Research, projects nos. 18-08-01356-a and 18-43-520034-r_povolzh’e_a.
Citation:
A. V. Shishulin, V. B. Fedoseev, “Peculiarities of phase transformations of polymer solutions in deformable porous matrices”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 45:14 (2019), 10–12; Tech. Phys. Lett., 45:7 (2019), 697–699
\Bibitem{ShiFed19}
\by A.~V.~Shishulin, V.~B.~Fedoseev
\paper Peculiarities of phase transformations of polymer solutions in deformable porous matrices
\jour Pisma v Zhurnal Tekhnicheskoi Fiziki
\yr 2019
\vol 45
\issue 14
\pages 10--12
\mathnet{http://mi.mathnet.ru/pjtf5371}
\crossref{https://doi.org/10.21883/PJTF.2019.14.48014.17826}
\elib{https://elibrary.ru/item.asp?id=41131123}
\transl
\jour Tech. Phys. Lett.
\yr 2019
\vol 45
\issue 7
\pages 697--699
\crossref{https://doi.org/10.1134/S1063785019070289}
Linking options:
https://www.mathnet.ru/eng/pjtf5371
https://www.mathnet.ru/eng/pjtf/v45/i14/p10
This publication is cited in the following 4 articles:
A. V. Shishulin, V. B. Fedoseev, “Stratifying polymer solutions in microsized pores: phase transitions induced by deformation of a porous material”, Tech. Phys., 65:3 (2020), 340–346
A. V. Shishulin, V. B. Fedoseev, “Thermal Stability and Phase Composition of Stratifying Polymer Solutions in Small-Volume Droplets”, J Eng Phys Thermophy, 93:4 (2020), 802
A. V. Shishulin, V. B. Fedoseev, A. V. Shishulina, “Changes in the Curie temperature in a porous material”, Tech. Phys. Lett., 46:7 (2020), 680–682
A. V. Shishulin, V. B. Fedoseev, “Features of the influence of the initial composition of organic stratifying mixtures in microsized pores on the mutual solubility of components”, Tech. Phys. Lett., 46:9 (2020), 938–941
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