3PD01 チオシアノ基とフッ素を分子末端に有する液晶化合物の合成と物性

概要

論文の詳細を見る
Some liquid crystalline materials having a thiocyanato group and a fluorine substituent at the terminal position were prepared and investigated the thermal properties. The transition temperatures and the latent heats were measured by the polarized microscope and the differential scanning calorimeter. 4-thiocyanatophenyl 4-(4-alkoxybenzoyloxy)benzoate derivatives showed nematic and smectic A phases. On the other hands, 4-alkoxyphenyl 4-thiocyanatophenyl terephthalate derivatives showed smectic B or C phase, as well as nematic and smectic A phases. The layer spacings of the smectic phases were examined by X-ray diffractions, suggesting that the short alkoxy derivatives have a mono-layer arrangement, but the long alkoxy derivatives have a partially bilayer one.
日本液晶学会の論文
1997-09-24