Abstract
The method of quartz-crystal microbalance was used to study the process of adsorption of water vapors in chitosan films formed on a solid support with a film thickness of 5 nm to 4 μm. It is found that the adsorption capacity of thin chitosan films with a thickness that is commensurable to the roughness of the support increases at a decrease in the thickness. The kinetics of desorption in chitosan films is also determined by the ratio of film thickness and support roughness: the desorption rate constant grows when the film thickness approaches the roughness of the support (nanosize range).
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Original Russian Text © V.N. Simonov, O.K. Krasil’nikova, E.V. Khozina, V.I. Zolotarevskii, 2014, published in Fizikokhimiya Poverkhnosti i Zashchita Materialov, 2014, Vol. 50, No. 3, pp. 316–324.
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Simonov, V.N., Krasil’nikova, O.K., Khozina, E.V. et al. The effect of support roughness on adsorption activity of micro- and nanosize chitosan films. Prot Met Phys Chem Surf 50, 363–370 (2014). https://doi.org/10.1134/S2070205114030198
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DOI: https://doi.org/10.1134/S2070205114030198