REFRACTIVE-INDEX OF WATER-AOT-N-HEPTANE MICROEMULSIONS

被引：23

作者：

GOFFREDI, M ^{[1
]}

LIVERI, VT ^{[1
]}

VASSALLO, G ^{[1
]}

机构：

[1] UNIV PALERMO,DEPT PHYS CHEM,VIA ARCHIRAFI 26,I-90123 PALERMO,ITALY

来源：

JOURNAL OF SOLUTION CHEMISTRY | 1993年 / 22卷 / 10期

关键词：

REVERSED AOT MICELLES; REFRACTIVE INDEX; PERCOLATION;

D O I：

10.1007/BF00646605

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：

Refractive index measurements on water/AOT/n-heptane microemulsions as a function of the volume fraction phi of the dispersed phase (water plus AOT) and of the water/AOT molar ratio R have been performed at 25-degrees-C. The refractive index was found to vary monotonically with phi without any change in rate during the crossover of the percolation threshold. Such a behavior suggested that, well above the percolation threshold, the water-AOT-n-heptane microemulsions are still formed by water-containing AOT reversed micelles dispersed in the oil phase. The analysis of the experimental data allowed an evaluation the fraction of the water molecules bonded to the AOT head group as a function of R.

引用

页码：941 / 949

页数：9

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