Ferroelectric liquid crystals polymer linearity

Eber, N., Bata, L., Scherowsky, G., and Schliwa, A., Linear electromechanical effect in a polymeric ferroelectric liquid crystal, Ferroelectrics, 122, 139-147 (1991). Kozlovsky, M. V., Darius, M., and Haa.se, W., Frustrated pha.se behaviour of a chiral side chain polymer, European Polymer Journal, (in press). 

H. S. Kitzerov, H. Molsen, and G. Heppke, Linear electro-optic effects in polymer-dispersed ferroelectric liquid crystals. Apll. Phys. Lett. 60, 3093-3095,1992. 

The occurrence of ferroelectricity in the chiral smectic C phase was already predicted by Meyer in 1975 [21]. From symmetry arguments, he concluded a polarization of a smectic layer perpendicular to the layer normal and to the director. Unwinding of the helicoidal structure causes macroscopic ferroelectric properties of the phase [22], [23]. Unlike low molar mass liquid crystals or linear liquid crystal polymers, the unwinding of the helicoidal structure is performed by applying an electric field or by surface effects. 

Karapinar R, Neill MO, Hird M (2002) Polymer dispersed ferroelectric liquid crystal films with high electro-optic quality. J Phys D Appl Phys 35(9) 900-903 Kitzerow HS, Molsen H, Heppke G (1992) Linear electro-optic effects in polymer-dispersed ferroelectric liquid crystals. Appl Phys Lett 60 3093 Kossyrev PA, Qi J, Priezjev NV, Pelcovits RA, Crawford GP (2002) Virtual surface, director domain and the Freedericksz transition in polymer-stabilized liquid crystals. Appl Phys Lett 81 2986... 

Lahiri T, Pal Majumder T (2012) The effect of cross-linked chains of polymer network on the memory states of polymer stabilized ferroelectric molecules. Polymer 53 2121-2127 Lee K, Suh SW, Lee SD (1994a) Fast linear electro-optical switching properties of polymer-dispersed ferroelectric liquid crystals. Appl Phys Lett 64 718 Lee K, Suh SW, Lee SD, Kim CY (1994b) Ferroelectric response of polymer-dispersed chiral smectic C liquid crystal composites. J Korean Phys Soc 27(1) 86... 

A liquid crystal device comprising ferroelectric liquid crystal material aligned by a liquid crystal polymer (LCP) network layer under 20 nm thick, which itself was aligned by a photo-oriented linearly photopolymerized (LPP) layer under 20 nm thick, exhibits low voltage drop over the aligning layer and has a remarkable contrast ratio. 

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