An empirical relationship between distribution coefficients of phenols by polyurethane foams and their octanol-water distribution constants and pKa values

被引：21

作者：

Dmitrienko, S ^{[1
]}

Myshak, EN ^{[1
]}

Pyatkova, LN ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Div Analyt Chem, Moscow 119899, Russia

来源：

TALANTA | 1999年 / 49卷 / 02期

关键词：

phenols; sorption; polyurethane foam; method of correlation ratio;

D O I：

10.1016/S0039-9140(98)00371-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Sorption of phenol, 3-cresol, 2-, 3-, 3-nitrophenols, 2,4-, 2,6-dinitrophenol, 2,4,6-trinitrophenol, and I-naphthol by polyether- and polyester-type polyurethane: foams (PUF) was investigated. The effects of sorption time, pH, phenol concentration and the structure of tested phenols and PUF were studied. The mechanism of sorption of tested compounds on foams is discussed. It is shown that the hydrophobicity (log P, octanol-water distribution constant) and pK(a) values of the compounds play an important role in the sorption process. A regression equation connecting distribution coefficient of phenols by PUF with their hydrophobicity parameter and pK(a) values were derived. Good correlation beta;een log D and values log P and pK(a) was observed. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：309 / 318

页数：10

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