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Dielectric Properties of Polymeric Liquid Crystals with Strong Lateral Dipole Groups

  • Wolfgang Haase (a1) and Matthias Pfeiffer (a1)

Abstract

Using broad band dielectric spectroscopy on well oriented microdomains of mesogenic polymethacrylates the influence of strong lateral dipole groups on the dielectric parameters could be verified. The mesogenic groups investigated were phenylbenzoates with fluorine substituents at the phenyl ring. The orientation of the samples was maintained in a superconducting magnet with field strength of 7.2 T. The results are compared with those obtained for non-substituted compounds.

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1. Finkelmann, H., Ringsdorf, H. and Wendorff, J.H., Macromolec. Chem. 179, 273 (1978).
2. Shibaev, V. P., Platè, N.A. and Freidzon, Y. S., J. Polym. Sci. Polym. Chem. Ed. 17, 1655 (1979).
3. McArdle, C. B. ed., Side Chain Liquid Crystal Polymers, (Blackie and Son Ltd. Glasgow, 1989)
4. Attard, G.S. Williams, G., Gray, W.G., Lacey, D. and Gemmel, P.A., Polymer 27, 185 (1986).
5. Vallerien, S. U., Kremer, F. and Boeffel, C., Liq. Cryst. 4, 79 (1989).
6. Kresse, W., Kostromin, S. and Shibaev, V.P., Macromolec. Chem. Rap. Commun. 3, 509 (1982).
7. Parnaix, J.D., Njeumo, R., Legrand, L, Barney, P. Le and Dubois, J.C., Liq. Cryst. 2, 167 (1987).
8. Bormuth, F.J. and Haase, W., Liq. Cryst. 3, 881 (1988).
9. Bormuth, F.J. and Haase, W., Liq. Cryst. 5. (1989), in print.
10. Bormuth, F.J., PhD thesis, Darmstadt (1988).
11. Haase, W., Pranoto, H. and Bormuth, F.J., Ber. Bunsenges. Phys. Chem. 89, 1229 (1985).
12. Pranoto, H., PhD thesis, Darmstadt (1984).
13. Nordio, P.L., Rigatti, G. and Segre, U., Mol. Phys. 25, 129 (1973).
14. Klingbiel, R.T. J. Am. Chem. Soc. 96, 7651 (1974).
15. Mikin, V.I., Osipov, O.A. and Zhanov, Y. A., Dipolmoments in Organic Chemistry, (Plenum Press, 1970).
16. Handbook of Chemistry and Physics, (Chemical Rubber Press, 1984).
17. Haase, W., Paulus, H. and Pendzialek, R., Mol. Cryst. Liq. Cryst. 101, 291 (1983).
18. Fan, Z.X., Buchner, S., Haase, W. and Zachmann, H.G., J. Chem. Phys., in print.
19. Havrillak, S. and Negami, S., J. Polym. Sci. C 14, 99 (1966).
20. Williams, M.L., Landel, R.F. and Ferry, J.D., J. Am. Chem. Soc. 77, 370 (1955).

Dielectric Properties of Polymeric Liquid Crystals with Strong Lateral Dipole Groups

  • Wolfgang Haase (a1) and Matthias Pfeiffer (a1)

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