Physicochemical properties of aqueous mixed solutions of sugar-persubstituted poly(amidoamine)dendrimers and anionic surfactants

被引：14

作者：

Esumi, K ^{[1
]}

Chiba, T ^{[1
]}

Mizutani, H ^{[1
]}

Shoji, K ^{[1
]}

Torigoe, K ^{[1
]}

机构：

[1] Sci Univ Tokyo, Inst Colloid & Interface Sci, Dept Appl Chem, Shinjuku Ku, Tokyo 1628601, Japan

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2001年 / 179卷 / 01期

关键词：

sugar ball; anionic surfactant; fluorinated surfactant; surface tension; fluorescence spectra of pyrene;

D O I：

10.1016/S0927-7757(00)00722-6

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：

Mixed aqueous properties of sugar-persubstituted poly(amidoamine) dendrimers (generation, 3.0 and 5.0) (sugar ball) and anionic surfactants, such as sodium dodecyl sulfate (SDS) and lithium perfluorooctanesulfonate (LiFOS), were investigated. The surface tensions of the mixtures of sugar balls and anionic surfactants at several fixed concentrations of sugar balls decreased sharply at low surfactant concentration, remained constant and then increased with a further increase of the surfactant concentration where the lower the surface tensions, the smaller the fixed concentration of the sugar balls. From the measurements of pyrene and 1-(perfluorooctanoyl)pyrene fluorescence spectra, it is suggested that aggregates between the anionic surfactants and sugar balls are formed, showing a hydrophobic environment. The mechanism for the aggregation formation is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：103 / 109

页数：7

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