PB26 赤外振動励起による重合性トリフェニレン系円盤状液晶の配向変化(2004年日本液晶学会討論会)

概要

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A triphenylene derivative possessing polymerizable functional groups was investigated on the alignment change by the polarized infrared laser irradiation. This derivative shows a Col_h mesophase. The microscopic texture of the Col_h mesophase shows a spontaneous homeotropic alignment between two BaF_2 substrates. When the polarized infrared light at 1616cm^<-1> corresponding to the C-C stretching vibrations of triphenylene core was irradiated, the microscopic texture was changed in the irradiated region. On the other hand, in the irradiation with the polarized infrared light at 1712cm^<-1> at which wavenumber any absorption takes place, no microscopic texture change was caused. It was found that the alignment control of the Col_h phase of the triphenylene derivative possessing polymerizable functional could be expected.
日本液晶学会の論文
2004-09-26