Abstract
The effect of the functionality of modifiers on the adsorption of vapors of compounds capable of strong specific interactions, including water, diethyl ether, and acetonitrile, on silicas with chemically grafted perfluorohexylsilanes (RSi(CH3)3 −m Cl m , where m (functionality) is 1, 2, 3 and R is polyfluoroalkyl) was studied by adsorption under static conditions, gas chromatography, and IR spectroscopy. It was found that modification with monofunctional silane results in the most hydrophobic coating and a comparatively low-polarity surface with a strongly decreased contribution of specific interactions compared with other modifiers.
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Original Russian Text © T.M. Roshchina, N.K. Shoniya, M.S. Lagutova, A.B. Nikol’skaya, V.Yu. Borovkov, L.M. Kustov, 2009, published in Zhurnal Fizicheskoi Khimii, 2009, Vol. 83, No. 2, pp. 361–369.
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Roshchina, T.M., Shoniya, N.K., Lagutova, M.S. et al. Adsorption of water, diethyl ether, and acetonitrile on silicas with grafted perfluorohexyl coatings. Russ. J. Phys. Chem. 83, 290–297 (2009). https://doi.org/10.1134/S0036024409020253
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DOI: https://doi.org/10.1134/S0036024409020253