The effect of β-cyclodextrin on the properties of cetyltrimethylammonium bromide micelles

被引：34

作者：

Guo, R ^{[1
]}

Zhu, XJ ^{[1
]}

Guo, X ^{[1
]}

机构：

[1] Yangzhou Univ, Dept Chem, Yangzhou 225002, Peoples R China

来源：

COLLOID AND POLYMER SCIENCE | 2003年 / 281卷 / 09期

关键词：

beta-cyclodextrin; diffusion coefficient; surface tension; mixed micelle; aggregation number;

D O I：

10.1007/s00396-002-0854-1

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 effect of beta-cyclodextrin (beta-CD) on cetyltrimethylammonium bromide (CTAB) micellar properties was studied by the determination of the diffusion coefficient, D. When the CTAB micelles have a spherical structure, D firstly increased and then remained unchanged, while the micellar aggregation number, N, decreased with the addition of beta-CD. When the CTAB concentration was less than the first critical micellar concentration, CTAB molecules could be included into beta-CD cavities with the molar ratio of CTAB to beta-CD being about 1: 1. However, when the CTAB concentration was higher than the first critical micellar concentration, mixed spherical micelles were formed with the molar ratio of CTAB to beta-CD being 9:1.

引用

页码：876 / 881

页数：6

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