The acidity and solvation of lignin-related phenols in water-1,4-dioxane mixtures

被引：2
|
作者：
Bogolitsyn, K. G. [1 ]
Kosyakov, D. S. [1 ]
Gorbova, N. S. [1 ]
Aizenshtadt, A. M. [1 ]
Shorina, N. V. [1 ]
机构：
[1] Arkhangelsk State Tech Univ, Arkhangelsk, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2008年 / 82卷 / 02期
关键词：
D O I：
10.1134/S0036024408020179
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The pK(a) values were determined for 10 guaiacyl phenols by UV spectrophotometric and potentiometric titration in the water-dioxane binary system over the composition range 0-80% organic solvent. The differentiating action of the solvent and para-substituent effects on the acidity of guaiacol derivatives were analyzed. The dependences of acidity constants on the mixed solvent composition were interpreted using the preferential solvation model.
引用
收藏
页码：237 / 241
页数：5
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