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

MD. N. ISLAM

Department of Physics, Tripura University, Suryamaninagar-799130, Tripura, India

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D. BHATTACHARJEE

Department of Physics, Tripura University, Suryamaninagar-799130, Tripura, India

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SYED ARSHAD HUSSAIN

Department of Physics, Tripura University, Suryamaninagar-799130, Tripura, India

Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Kasteelpark, Arenberg 23, 3001 Leuven, Belgium

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https://doi.org/10.1142/S0218625X08011378Cited by:7 (Source: Crossref)

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.

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