Polymerizable, chiral compounds and their use

Details Polymerizable, chiral compounds and their use Polymerizable, chiral compounds and their use

1998-01-12

1999-03-23

Richter, Johann

Chemistry of hydrocarbon compounds

Compound or reaction product mixture

Aromatic

585 26, 585 27, 544224, 544242, 546249, 548136, 548143, 549 29, 25229901, 25229961, 25229962, 25229966, 570125, 570127, 570182, 570183, 568924, 568928, 568929, C07C 13465, C07C 1348, C07C 1512, C07C23926

Patent

active

058862420

ABSTRACT:
The invention relates to chiral compounds containing at least one divalent or polyvalent chiral group, at least one polymerizable group, at least one spacer and at least one mesogenic group, and to their use as polymerizable, chiral dopes for the preparation of cholesteric networks.
The novel compounds are suitable for use in electro-optical displays or as chiral dopes for nematic or cholesteric liquid crystals in order to produce layers which reflect in colors.

REFERENCES:
patent: 5011623 (1991-04-01), Yoshinaga et al.
Liquid Crystals and Plastic Crystals, vol. 1, pp. 18-62, 1994, A. Saupe, "Classification and Organization of Mesomorphous Phases Formed by Non-Amphiphilic and Amphiphilic Compounds".
Festkoerper Probleme XI, pp. 99-133, 1971, H. Baessler, "Liquid Crystals ".
The Journal of Chemical Physics, vol. 52, pp. 631-637, Jan. 1--Jun. 15, 1970, H. Baessler, et al., "Helical Twisting Power of Steroidal Solutes in Cholesteric Mesophases".
The Journal of Chemical Physics, vol. 51, No. 8, pp. 3213-3218, Oct. 15, 1969, H. Baessler, et al. "Electric Field on the Optical Rotatory Power of a Compensated Cholesteric Liquid Crystal".
Zeitschrift Fuer Naturforschung, vol. 28, pp. 799-800, 1973, H. Finkelmann, et al., "AB-Initio Study of Hydrogen Bonded Radical"--Abstract only.
Die Naturwissenschaften, vol. 58, pp. 599-602. 1971, H. Stegemeyer, et al., "Induzierung Von Optischer Aktivaet Und Zirkulardichroismus in Namatischen Phasen Durch Chirale Molekuele"--Abstract only.
Berichte Der Bunsen-Gesellschaft fuer Physikalische Chemie, vol. 78. No. 7, pp 869-874, 1974, V.H. Finkelmann, et al. "Beschreibung Cholesterischer Mischsysteme Mit Einer Erweiterten Goosens-Theorie".
Molecular Crystals and Liquid Crystals, vol. 16, pp. 33-37, 1972, J. Adams, et al., "The Relationship Between Pitch Change and Stimulus in Cholesterics".
Macromolecular Chemistry and Physics, vol. 187, pp., 289-296, 1986, G. Galli, "Systhesis and Theromotropic Properties of New Mesogenic Diacrylate Monomers".
Ferroelectric Liquid Crystal Mixtures with Carbohydrate Derivatives as Dopants, Vill. V. et al,; Z. Naturforsch,.; A. Phys. Sci. (1989), 44(7), pp. 675-679. --Abstract only.
"Helical Twisting Power of Carbohydrate Derivatives," V. Vill et al, Z. Naturforsh, A. Phys. Sci. (1988), 43(12), pp. 1119-1125.--Abstract only.
Organic Chemistry, A Short Course, Hart, Hart and Crane, Hougton Mifflin Co., Boston, MA 1995, pp. 34-38.

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