The interaction of acid azo dyes with chemically modified β-cyclodextrins

被引：11

作者：

Iijima, T ^{[1
]}

Karube, Y ^{[1
]}

机构：

[1] Jissen Womens Univ, Dept Human Environm Sci, Tokyo 191, Japan

来源：

DYES AND PIGMENTS | 1998年 / 36卷 / 04期

关键词：

dimethyl-beta-cyclodextrin; trimethyl-beta-cyclodextrin; azo dye; inclusion reaction; hydrophobic interaction;

D O I：

10.1016/S0143-7208(97)00032-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The interaction of acid azo dyes with dimethyl- and trimethyl-beta-cyclodextrins was investigated spectrophotometrically. The binding ability was found to increase with the dimethyl derivative, as compared with the original cyclodextrin, due to hydrophobic interaction, On the other hand further substitution of the methyl group decreases binding of the cyclodextrin cavity by steric hindrance for the guest dye molecule. By using thermodynamic quantities of the binding equilibrium the reaction of the inclusion mechanism is discussed. (C) 1998 Elsevier Science Ltd.

引用

页码：305 / 311

页数：7

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