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Polymer dispersed liquid crystal films are prepared with a nematic chiral liquid crystal which forms both a cholesteric and a smectic phase. The influence of the liquid crystal droplet size on the cholesteric-isotropic and smectic-cholesteric transition temperatures has been investigated. For large liquid crystal inclusions, the wavelength of selective reflection associated with the cholesteric phase and its evolution with temperature depend on the size of the droplet inside which the liquid crystal is confined.
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Radian-Guenebaud et al. (1992) studied this question.
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