Abstract
Abstract The orientational behaviour of some low molecular liquid crystals and two liquid crystalline polymers with mesogenic side groups in the nematic phase has been investigated using the “guest—host” effect. The polarized absorption and fluorescence spectra of a dichroic dye oriented in the liquid crystalline matrices versus temperature have been measured and the order parameters 〈P2〉 and 〈P4〉 as well as the molecular distribution function have been determined. Small differences between the molecular orientation in the low molecular liquid crystals and the side-chain polymers have been observed.
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