Liquid Crystals II. Liquid Crystalline Properties of Transcinnamic Acid Esters
Research interest in room temperature liquid crystals has grown in recent years due to their increased applications in display devices. A current emphasis in the area has “been to obtain nematic materials that are colorless as well as stahle to atmospheric contaminants. Several low melting compounds and mixtures from the Schiff-base,2,3 azo and azoxy benzenes,4,5 chlorostilbenes,6 and benzoyloxybenzoate7,8 series have been investigated for these purposes. Many of these compounds exhibit properties that are undesirable for display applications such as instabilities toward moisture and u.v. radiation in addition to some yellow colorations.
KeywordsLiquid Crystal Malonic Acid Thionyl Chloride Liquid Crystalline Property Effective Dipole Moment
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- 1.For the first part of this series see: F. Jones and J. Ratto, in press.Google Scholar
- 3.R. Steinstrasser and L. Pohl, Z. Naturforsch. 26b, 87 (1971).Google Scholar
- 5.R. Steinstrasser and L. Pohl, Tetrahedron Lett. 1921 (1971).Google Scholar
- 8.W. R. Young and D. C. Green, IBM Research Journal, RC4l21 and references cited therein.Google Scholar
- 9.B. P. Smirnov and I. G. Christyakov, Izy. Vyssh. Ucheb. Zaved. Khim. Technol. 13, 217 (1970).Google Scholar
- 10.G. W. Gray and B. Jones, J. Chem. Soc, 1467 (1954).Google Scholar
- 12.G. W. Gray, “Molecular Structure and the Properties of Liquid Crystals”, Academic Press, New York, N.Y. (1962).Google Scholar
- 13.J. E. Goldmacher and M. T. McCaffney, in “Liquid Crystals and Ordered Fluids”, Plenum Press, New York, 375 (1970).Google Scholar
- 14.V. I. Minkin, D. A. Osipov and Y. A. Zhdanov, “Dipol Moments in Organic Chemistry”, Plenum Press, New York-London (1970).Google Scholar
- 15.F. Jones, Jr., R. Chang, and E. P. Parry, U.S. patent filed.Google Scholar