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PDLC composites with elongated LC droplets

PDLC composites containing elongated ellipsoidal or flat liquid crystal droplets have been prepared by three different methods depending on properties of polymer matrix. The morphology of composites, i.e. concentration, size and shape of droplets have been changed during the preparation process and optimized after studies of optical properties. The light scattering of PDLCs, especially the optical contrast ratio in on- and off states, selective light reflection in case of chiral nematics dispersed in polymer as well the polarization properties of PDLC systems containing elongated liquid crystal droplets have been studied.