MONOLAYER CHARACTERISTICS OF PYRENE MIXED WITH STEARIC ACID AT THE AIR–WATER INTERFACE

Md. N. Islam, D. Bhattacharjee and Syed Arshad Hussain ()
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Md. N. Islam: Department of Physics, Tripura University, Suryamaninagar-799130, Tripura, India
D. Bhattacharjee: Department of Physics, Tripura University, Suryamaninagar-799130, Tripura, India

Surface Review and Letters (SRL), 2008, vol. 15, issue 03, 287-293

Abstract: In the present communication, the monolayer characteristics of pyrene mixed with stearic acid (SA) at the air–water interface have been reported. The monolayer properties are investigated by recording and analyzing the surface pressure–area per molecule isotherm(π–A)of the pyrene–SA mixed films. It is observed that the pyrene and SA are miscible in the mixed monolayer. This miscibility/nonideality leads to phase separation between the constituent components (pyrene and SA). BAM image of the mixed monolayer confirms the miscibility or nonideal mixing at the mixed monolayer.

Keywords: Langmuir films; monolayer; miscibility; BAM; air–water interface (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1142/S0218625X08011378

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