Gelling agent and production method thereof, liquid crystal...

Details Gelling agent and production method thereof, liquid crystal... Gelling agent and production method thereof, liquid crystal...

2007-01-30

2007-01-30

Wu, Shean C (Department: 1756)

Compositions

Liquid crystal compositions

C252S299300, C252S299500, C549S035000, C549S036000, C549S037000, C549S039000, C549S040000

Reexamination Certificate

active

10796981

ABSTRACT:
Disclosed herein are a gelling agent composed of a functional amino acid compound having a tetrathiafulvalenyl group, and a production method of a gelling agent, comprising reacting a tetrathiafulvalene derivative with an amino acid derivative in the presence of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride and 4-(N,N-dimethylamino)pyridine to obtain a functional amino acid compound having a tetrathiafulvalenyl group.

REFERENCES:
patent: 7037444 (2006-05-01), Kato et al.
M. Jørgensen, et al., J. Org. Chem., vol. 59, pp. 5877-5882, “Synthesis and Structural Characterization of a Bis-Arborol-Tetrathiafulvalene Gel: Toward a Self-Assembling “Molecular” Wire”, 1994.
N. Mizoshita, et al., Chem. Commun., pp. 781-782, “Smectic Liquid-Crystalline Physical Gels. Anisotropic Self-Aggregation of Hydrogen-Bonded Molecules in Layered Structures”, 1999.
N. Mizoshita, et al., J. Mater. Chem., vol. 12, pp. 2197-2201, “Electrooptical Properties of Liquid-Crystalline Physical Gels: A New Oligo(Amino Acid) Gelator for Light Scattering Display Materials”, 2002.
K. Hanabusa, et al., Chem. Mater., vol. 11, pp. 649-655, “Easy Preparation and Useful Character of Organogel Electrolytes Based on Low Molecular Weight Gelator”, 1999.

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