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Vector Lattice Model of Amphiphilic Mixtures: Interfacial Behavior

Published online by Cambridge University Press:  10 February 2011

C. Buzano ,
L. R. Evangelista  and
A. Pelizzola
C. Buzano
Affiliation:
Dipartimento di Fisica, Politecnico di Torino, c. Duca degli Abruzzi 24, 10129 Torino, Italy
L. R. Evangelista
Affiliation:
Dipartimento di Fisica, Politecnico di Torino, c. Duca degli Abruzzi 24, 10129 Torino, Italy Departamento de Fìsica, FUEM, Av. Colombo, 5790, 87020–900, Maringà, Parana, Brazil
A. Pelizzola
Affiliation:
Dipartimento di Fisica, Politecnico di Torino, c. Duca degli Abruzzi 24, 10129 Torino, Italy
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Abstract

The interfaces between the water-rich, oil-rich and disordered phases of a balanced ternary mixture of oil, water and amphiphile are studied, on the basis of a vector lattice model, by means of an exact partial integration and a local mean field approximation. The phase diagram exhibits a water/oil-rich phase, structured (ordered bicontinuous and lamellar) phases and a disordered phase with a microemulsion region. The interfacial tension and profiles at oil/water/disordered phase coexistence are calculated and the possibility of a wetting transition is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 463: Symposia EE – Statistical Mechanics in Physics and Biology , 1996 , 123
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

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