ON THE SPECIFIC EFFECTIVENESS OF ADDED IONS TO INDUCE CHANGES IN THE STRUCTURE OF SODIUM DODECYL-SULFATE MICELLES

被引：5

作者：

DEVIJLDER, M

机构：

[1] Universiteit Gent, Laboratórium voor Fysische Scheikunde, B-9000 Gent

来源：

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 1991年 / 174卷

关键词：

SODIUM DODECYL SULFATE; MICELLAR STRUCTURE; INDUCED 2ND CMC;

D O I：

10.1524/zpch.1991.174.Part_1.119

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 specific effectiveness of added ions to induce shape transitions in the micelles of sodium dodecyl sulfate (SDS) has been reinvestigated by means of the graphical method described in Ref. [10]. The sequence of effectiveness for counterions parallels the sequence of the corresponding c.m.c. values, known from the literature [Na+ < NH4+ < (CH3)4N+ < (C2H5)4N+] and thus not that of the ion's hydrated size. The ease of transition is found to be independent of the co-ion species, at least for Cl-, Br-, I- and BrO3-, but not for CH3COO- where it is favoured. Other than only electrostatic interactions - particularly hydrophobic ones - must be considered to interpret these experimental results.

引用

页码：119 / 128

页数：10