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O. M. Medvedeva, E. N. Myshak, S. G. Dmitrienko, A. A. Ivanov, O. A. Shpigun
Sorption of carbon
aromatic acids by polyurethane foams
Abstract
Sorption of benzoic, salicylic, p-oxybenzoic,
gallic, gippuric and acetyl-salicylic acids by polyurethane foams (PUF) in
dependence acid-base properties, hydrophobicity of molecule and structure of
polyurethane’s link was investigated. It’s shown that linear correlation
between distribution coefficients and hydrophobicity (Hansh parametr) can be
observed for a set of acids with similar acid-base properties. A regression
equations connecting distribution coefficients of acids by PUF with their
hydrophobicity parameter and pKa values were suggested. The sorption
mechanism is suggested.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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