Formation of complex films with water-soluble CTAB molecules

Details Formation of complex films with water-soluble CTAB molecules Formation of complex films with water-soluble CTAB molecules

2008-12-03

arxiv.org/abs/0812.0746v1

Physics

Condensed Matter

Materials Science

11 pages, 5 figures

Scientific paper

10.1016/j.saa.2005.12.021

This communication reports the formation of complex Langmuir monolayer at the air-water interface with the water-soluble -trimethyl ammonium bromide (CTAB) molecules when interacted with the stearic acid (SA) molecules. The reaction kinetics of the formation of the CTAB-SA complex was monitored by observing the surface pressure versus time graph. Multilayered LB films of this complex doped with congo red was successfully formed onto a quartz substrate. UV-Vis absorption and steady state fluorescence spectroscopic characteristics of this doped LB films confirms the successful incorporation of congo red molecules in to the CTAB-SA complex films.

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