Adsorption of organic molecules on a porous polymer surface modified with the supramolecular structure of melamine–cyanuric acid
- Authors: Gainullina Y.Y.1, Guskov V.Y.1
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Affiliations:
- Bashkir State University
- Issue: Vol 91, No 10 (2017)
- Pages: 2007-2011
- Section: Physical Chemistry of Surface Phenomena
- URL: https://journals.rcsi.science/0036-0244/article/view/169739
- DOI: https://doi.org/10.1134/S0036024417100107
- ID: 169739
Cite item
Abstract
The adsorption of organic molecules on the surface of a porous polymeric sorbent modified with a mixed cyanuric acid–melamine supramolecular structure is studied. The parameters of thermodynamic adsorption are considered and the contributions from intermolecular interactions to the Helmholtz energy of adsorption are assessed. Analysis of the molar changes in internal energy and adsorption entropy shows that the supramolecular structure formed on the surface could not exhibit dimension effects, indicating there were no cavities. The contributions from nonspecific interactions to the Helmholtz energy of adsorption generally fall, while those of specific interactions increase, indicating an increase in the polarity of the sorbent surface.
About the authors
Yu. Yu. Gainullina
Bashkir State University
Author for correspondence.
Email: umashkova@mail.ru
Russian Federation, Ufa, 450074
V. Yu. Guskov
Bashkir State University
Email: umashkova@mail.ru
Russian Federation, Ufa, 450074