BEHAVIOR OF PYRENE IN AIR WATER MONOLAYERS OF EICOSANOIC ACID

被引：28

作者：

WISTUS, E ^{[1
]}

MUKHTAR, E ^{[1
]}

ALMGREN, M ^{[1
]}

LINDQUIST, SE ^{[1
]}

机构：

[1] UNIV UPPSALA,DEPT PHYS CHEM,BOX 532,S-75121 UPPSALA,SWEDEN

来源：

LANGMUIR | 1992年 / 8卷 / 05期

关键词：

D O I：

10.1021/la00041a020

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Mixtures of pyrene and eicosanoic acid have been studied by surface pressure-area (pi-A) isotherms and steady-state and time-resolved fluorescence spectroscopy. Addition of pyrene in a monolayer at the air-water interface did not affect the area of the film. Steady-state fluorescence spectra showed only monomer emission even at very high pyrene concentrations. Time-resolved fluorescence spectroscopy showed that decays were described by a single exponential function. Addition of iodide ions in the subphase quenched the fluorescence strongly and this quenching was found to be independent of the degree of compression. These observations suggest that the pyrene molecules are located at the water-fatty acid interface.

引用

页码：1366 / 1371

页数：6

共 24 条

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