Compositions – Liquid crystal compositions
Patent
1996-01-16
1998-05-12
Wu, Shean C.
Compositions
Liquid crystal compositions
349183, 430 20, G09K 1952, G07F 113
Patent
active
057500495
ABSTRACT:
An optical information storage material which can reversibly store said information comprising a polymeric material with a dependence of optical activity on temperature characterized in that the optical activity is substantially invariant at temperatures below Tg of said polymer, and variant at a temperatures at or near or above the Tg.
REFERENCES:
patent: 3810860 (1974-05-01), Doyle
patent: 5132355 (1992-07-01), Nahlovsky
patent: 5384221 (1995-01-01), Savant et al.
patent: 5459192 (1995-10-01), Green et al.
patent: 5480749 (1996-01-01), Green
Green et al; "Macromolecular Stereochemistry: The Out-Of-Proportion Influence of Optically Active Comonomers on the Conformational Characteristics of Polysocyanates. The Sergeants and Soldiers Experiment"; 1989; pp. 6452-6454; American Chemical Society.
Khatri et al; "Optical Activity and the Thermally Reversible Gelation of Poly(n-hexyl isocyanate) in Hydrocarbon Solvents: Aggregates and the Bad Neighbor Theory"; Aug. 1992, vol. 33, No. 2; pp. 359-360; American Chemical Society.
Green et al; "Dilute-Solution Chiral Optical Changes Signal the Thermally Reversible Gelation of Poly(n-hexyl isocyanate) in Hydrocarbon Solvents"; 1993; pp. 1-3; American Chemical Society.
Maxein et al; "Photochemical Inversion of the Helical Twist Sense in Chiral Polyisocyanates"; 1995; pp. 8438-8440; Macromolecules vol. 28, No. 24.
Yashima et al; "Photocontrolled Chiral Recognition by pp. 8368-8374; Macromolecules vol. 28, No. 24.
Muller et al; "Interplay of Chiral Side Chains and Helical Main Chains in Polyisocyanates"; 1996; pp. 1609-1617; Macromolecules vol. 29, No. 5.
Kim et al; "Polarized Laser Induced Holographic Surface Relief Gratings on Polymer Films"; 1995; pp. 8835-8839;Macromolecules vol. 28, No. 26.
Feringa et al; "Chiroptical Switching between Liquid Crystalline Phases"; 1995, pp. 9929-9930; vol. 117, No. 39 Journal Americal Chemical Soc.
Willner et al; "Control of the Structure and Functions of Biomaterials by Light"; 1996; pp. 367-385; Angew. Chem. Int. Ed. Engl. vol. 35.
Itagaki et al; "Helix-Coil Transition and Physical Gelation of Isotactic Polystyrene in cis-and trans-Decalin Monitored by Fluorescence Measurements"; 1995; pp. 5477-5486; Macromolecules vol. 28, No. 16.
Brown et al; "Azo Polymers for Reversible Optical Storage. 5. Orientation and Dipolar Interactions of Azobenzene Side Groups in Copolymers and Blends Containing Methyl Methacrylate Structural Units";1995;pp. 6116-6123; Macromolecules vol. 28, No. 18.
Natansohn et al; "Azo Polymers for Reversible Optical Storage. 6. Poly Macromolecules vol. 28, No. 12.
Ho etal; "Azo Polymers for Reversible Optical Storage. 9. Copolymers Containing Two Types of Azobenzene Side Groups"; 1996; pp. 44-49; Macromolecules vol. 29, No. 1.
Hayes Soloway, Hennessey, Grossman & Hage
Wu Shean C.
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