Azotolane liquid-crystalline polymers: huge change in birefringence by photoinduced alignment change.
Azotolane liquid-crystalline polymers: huge change in birefringence by photoinduced alignment change.
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DOI：
10.1021/ja0664382
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发表时间：
2006-11
影响因子：
15
通讯作者：
K. Okano;O. Tsutsumi;A. Shishido;T. Ikeda
中科院分区：
文献类型：
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作者：
K. Okano;O. Tsutsumi;A. Shishido;T. Ikeda
Novel liquid-crystalline polymers (LCPs) containing a long azotolane moiety were synthesized, and the relationship between the chemical structures and the photoresponsive behavior was investigated. All homogeneously aligned LCP films exhibited extremely high values of birefringence (Deltan) in the wide wavelength range. Specifically, the azotolane LCP with two azobenzene units showed the most efficient change in the alignment of the azotolane moiety with a huge change in Deltan (>/=0.65). This means that the high value of Deltan in the homogeneously aligned state can be converted to the change in Deltan effectively.
