PBb07 5-シアノトロポロンを基本構造とする液晶の合成と物性評価

抄録

New troponoid liquid crystals with an electron-withdrawing cyano substituent were prepared. They showed monotropic nematic phases when the alkoxyl chain of the benzoyloxy group was short. While the alkoxyl chain was long, enantiotropic smectic A phases appeared. From the X-ray diffraction study, the interdigitated molecular packing model was proposed because the lamellar spacings are 1.3 times larger than the calculated molecular length.