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  • Title: Formation of complex films with water-soluble CTAB molecules.
    Author: Biswas S, Hussain SA, Deb S, Nath RK, Bhattacharjee D.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2006 Nov; 65(3-4):628-32. PubMed ID: 16549387.
    Abstract:
    This communication reports the formation of complex Langmuir monolayer at the air-water interface with the water-soluble N-cetyl N,N,N-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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