2A03 斜入射X線回折と複屈折の時間分解測定によるスメクチックC相と双連結型キュービック液晶相間の光誘起相転移速度の研究(ソフトマター,口頭発表,2015年日本液晶学会討論会)

抄録

Recently, we achieved the UV-induced liquid crystalline phase transition from 1D-organized smectic C (SmC) to the 3D-organized bicontinuous cubic (Cub_<bi>) phase utilizing the photoisomerization of an azobenzene derivative. The sample is a binary mixture containing 4'-n-docosyloxy-3'-nitrobiphenyl-4-carboxylic acid (ANBC-22) and azobenzene derivative 4-(4'-n-docosyloxyphenyl-azo)benzoic acid ethyl ester (azo-COOEt-22). In this work, we investigated effects of the concentration of azo-COOEt-22 and temperature on the phase transition rate using time-resolved measurements of grazing-incidence X-ray diffraction (GI-XRD) and birefringence.