On the anomalous behavior of alcohol adsorption on polymer-coated siliceous materials

被引：5

作者：

Dawidowicz, AL ^{[1
]}

Patrykiejew, A ^{[1
]}

Wianowska, D ^{[1
]}

机构：

[1] Marie Curie Sklodowska Univ, Fac Chem, PL-20031 Lublin, Poland

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1999年 / 214卷 / 02期

关键词：

adsorption of alcohols; modified silica materials; adsorption desorption heats; polysaccharide-polyimine layer;

D O I：

10.1006/jcis.1999.6220

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：

Adsorption of alcohols on polymer-coated silica materials is considered. The data obtained show that the inner structure of the polymer layer determines the adsorptive properties of the material. From the presented results it follows that the adsorption of polar alcohol molecules from nonpolar solvent occurs in two steps of different kinetics. A simple model which explains large discrepancies between the adsorption and desorption heats is proposed. It is also demonstrated that the model allows us to explain the adsorption behavior of polar solutes from polar solvent. (C) 1999 Academic Press.

引用

页码：362 / 367

页数：6

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