Microphase stabilized ferroelectric liquid crystals

Details Microphase stabilized ferroelectric liquid crystals Microphase stabilized ferroelectric liquid crystals

1997-12-23

2000-10-17

Wu, Shean C.

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

25229901, 2522995, 25229965, 349172, C09K 1938, C09K 1942, C09K 1912

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active

061328197

ABSTRACT:
A microphase stabilized ferroelectric liquid crystal (MSFLC) and optical device prepared therefrom are provided. The MSFLC includes a block copolymer, comprising at least one non-liquid crystal polymer block and at least one liquid crystalline polymer block including a chiral mesogenic side group, the block copolymer comprising domains of the non-liquid crystalline block of the non-liquid crystalline polymer and domains of chiral mesogenic polymer such that the domains form an inverted cylinder morphology. The volume percent and block size of the chiral mesogenic group are selected such that the spacings between cylinders is sufficient to permit switching of the chiral mesogenic group between two stable orientations.

REFERENCES:
patent: 5397503 (1995-03-01), Yuasa et al.
Mao et al., "Microphase-stabilized ferroelectric liquid crystals (MSFLC): bistable switching of ferroelectric liquid crystal-coi diblock copolymers," Chem. Mater. (1998) 6:1538-1545.
Mao et al., "Molecular Design, Synthesis And Characterization of Liquid Crystal-Coil Diblock Copolymers With Azobenzene Side Groups," Macromolecules (1997) 30:2556-2567.
Wen Yue Zheng et al., "Side Chain Liquid Crystalline Block Copolymers With Chiral Smectic C* Mesogens," Liquid Crystals For Advanced Technologies, Symposium (1996) 8-11:67-72.
Scherowsky et al., "Fast Switching Ferroelectric Liquid-Crystalline Polymers", Liquid Crystals 5(4):1281 (1989).
M. Brehmer and R. Zentel, "Ferroelectric Liquid-Crystalline Elastomers with Short Switching Times" Macromol. Rapid Comm. 16:659 (1995).
Ober et al., "Multiple length Self-Organization in Liquid Crystalline Block Copolymers" Ma cromol. Symp. 117:141 (May, 1997).
Brehmer et al., "Ferroelectric Block Copolymers" Ma cromol. Symp. 117:175 (May, 1997).
G. Galli, "Block Copolymers and Liquid Crystalline Block Copolymers: A Bird's-Eye View" Ma cromol. Symp. 117:109 (May, 1997).
Omenat et al., "Synthesis, Characterization and Physical Propoerties of New Ferroelectric Liquid Crystalline Materials: Block Copolymers" Macromolecules 1996(29):6730 (1996).
R. Zental and M. Brehmer, "Creat Ferroelectric Liquid Crystals Elastomers" Chemtech, p. 41 (May, 1995).
W.Y. Zheng and P.T. Hammond, "Synthesis of New Smectic C* Liquid-Crystalline Block Copolymers" Macromol. Rapid Commun. 17:813 (1996).
Mao et al., "Microphase Stabilized Ferroelectric Liquid Crystal (MSFLC) Bistable Switching of FLC-Coil Diblock Copolymer" Polymer Prep.38:374 (1997).
Thomas et al., "Influence of a Liquid Crystalline Block on Microdomain Structure" Ma cromol. Symp. 117:241-256 (May, 1997).

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