Quantitative Spreading Kinetics of a Three Molecular Layer Liquid Patch

The late stage kinetics of the spreading of a smectic nanodrop on a solid surface was investigated by direct and real time imaging of a three molecular layer patch using the SEEC microscopy. Experimental data do not conform to the only available theory, which covers only weakly stratified liquids. A...

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Bibliographic Details
Published in:Langmuir 2010-04, Vol.26 (8), p.6015-6018
Main Authors: Noel, Olivier, Buraud, Jean-Luc, Berger, Laurent, AusserreĢ, Dominique
Format: Article
Language:English
Subjects:
Kinetics
Materials: Nano-and Mesostructured Materials, Polymers, Gels, Liquid Crystals, Composites
Microscopy
Models, Theoretical
Nanostructures - chemistry
Surface Properties
Thermodynamics
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Summary:The late stage kinetics of the spreading of a smectic nanodrop on a solid surface was investigated by direct and real time imaging of a three molecular layer patch using the SEEC microscopy. Experimental data do not conform to the only available theory, which covers only weakly stratified liquids. A new model is proposed, in remarkable agreement with experiments, in which the spreading mechanism appears to be a quasi-static process ruled by solid/liquid interactions, 2D Laplace pressure, and separate edge and surface permeation coefficients.
ISSN:0743-7463
1520-5827
DOI:10.1021/la904704u