Lyotropic liquid crystals

MAY 01, 1982

Soap‐like molecules, with a hydrocarbon structure at one end and a polar structure at the other, form liquid crystals that change phase according to their concentration in water.

DOI: 10.1063/1.2915092

Peter S. Pershan

In mixtures of soap and water, the special properties of soap molecules cause them to form clusters—and clusters of clusters—in a variety of interesting geometrical shapes. Some of these aggregates are liquid crystals, known as lyotropic, which are quite different from thermotropic liquid crystals, the focus of most of the work described in this issue of PHYSICS TODAY. Lyotropic liquid crystals are now receiving a great deal of scientific and technological attention because of the way they reflect the unique properties of their constituent molecules.

References

1. A. W. Adamson, Physical Chemistry of Surfaces, third ed., Wiley, New York (1976).
2. G. L. Gaines, Insoluble Monolayers at a Liquid Gas Interface, Wiley, New York (1966).
3. P. S. Missel, N. A. Mazer, G. B. Benedek, C. Y. Young, M. C. Carey, J. Phys. Chem. 84, 1044 (1980).https://doi.org/JPCHAX
4. See, for example, B. Lindman, H. Wennerström, in Topics in Current Chemistry 87, F. L. Buschke, ed., Springer‐Verlag, Berlin (1980), pages 1–83.
5. R. Dorshow, F. de Buzzaccarini, C. A. Bunton, D. F. Nicoli, Phys. Rev. Lett. 47, 1336 (1981).https://doi.org/PRLTAO
6. J. F. Nagle, H. L. Scott, PHYSICS TODAY, February 1978, page 38.
7. Ordering in Two Dimensions, S. K. Sinha, ed., North Holland, New York (1980).
8. V. von Tscharner, H. M. McConnell, Biophys. J. 36, 409 (1981).https://doi.org/BIOJAU
9. G. J. T. Tiddy, Phys. Rep. 57, 1 (1980).
10. See, for example, P. G. de Gennes, The Physics of Liquid Crystals, Oxford U.P., Oxford (1974).
11. G. Friedel, F. Grandjean, Bull. Soc. Fr. Mineral. 33, 192 and (1910).https://doi.org/BSFMAU
12. W. J. Benton, E. W. Toor, C. A. Miller, T. FortJr., J. Phys. 40, 107 (1979).
13. D. Chapman, Q. Rev. Biophys. 8, 185 (1975).https://doi.org/QURBAW
14. Magnetic resonance studies of lyotropic liquid crystals are reviewed by J. Charvolin and A. Tardieu in Solid State Physics, Supplement 14;
Liquid Crystals, L. Hebert, ed., Academic, New York (1978), Page 209;
see also references 9 and 13.
15. S. A. Asher, P. S. Pershan, Biophys. J. 27, 393 (1979).https://doi.org/BIOJAU
16. W. K. Chan, W. W. Webb, Phys. Rev. Lett. 46, 603 (1981).https://doi.org/PRLTAO
17. K. Fontell, Mol. Crystals Liq. Crystals 63, 59 (1981).
18. Y. Hendrikx, J. Charvolin, J. Phys. 42, 1427 (1981).
19. D. E. Moncton, R. Pindak, Phys. Rev. Lett. 43, 701 (1979).https://doi.org/PRLTAO
20. P. S. Pershan, J. Phys. (Paris) 40, C3‐423 (1979).https://doi.org/JOPQAG
21. T. Urabe, S. Asher, P. S. Pershan, Proc. Nat. Acad. Sci. USA 78, 4941 (1981).https://doi.org/PNASA6
22. C. Rosenblatt, R. Pindak, N. A. Clark, R. B. Meyer, Phys. Rev. Lett. 42, 1220 (1979).https://doi.org/PRLTAO

More about the Authors

Peter S. Pershan. Harvard Universit.