Electro-optic effects in novel siloxane containing oligomeric liquid crystals I: smectic A materials

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Abstract
Two novel series of siloxane containing low molar mass liquid crystals have been synthesized and characterized by DSC, optical microscopy and x-ray scattering. The compounds have been shown to exhibit nematic, smectic A, and chiral smectic C phases. In this paper we concentrate on the unusual electro-optic threshold voltage and response time behavior of these materials in the SA phase. Pleochroic and fluorescent dyes have been incorporated into mixtures and data is presented on the electro-optic properties of such guest-host materials.

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