二芳基乙烯
光致变色
聚合物
材料科学
发色团
光化学
异构化
辐照
可见光谱
弯曲分子几何
热稳定性
光电子学
纳米技术
化学
有机化学
复合材料
催化作用
核物理学
物理
作者
Jun‐ichi Mamiya,Akito Kuriyama,Naoki Yokota,Masafumi Yamada,Tomiki Ikeda
标识
DOI:10.1002/chem.201406299
摘要
Abstract Cross‐linked liquid‐crystalline (LC) polymers with a mesomorphic diarylethene were prepared to demonstrate a versatile strategy for cross‐linked photochromic LC polymers as photomobile materials. Upon exposure to UV light to cause photocyclization of the diarylethene chromophore, the cross‐linked polymer films bend toward an actinic light source. By irradiation with visible light to cause a closed‐ring to open‐ring isomerization, the bent films revert to the initial flat state. Without visible‐light irradiation, the bent films remain bent even at 120 °C, indicating high thermal stability of the cross‐linked diarylethene LC polymers.
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