PHOTOINDUCED BENDING UPON PULSED IRRADIATION IN AZOBENZENE-CONTAINING CROSSLINKED LIQUID-CRYSTALLINE POLYMERS
PHOTOINDUCED BENDING UPON PULSED IRRADIATION IN AZOBENZENE-CONTAINING CROSSLINKED LIQUID-CRYSTALLINE POLYMERS
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DOI：
10.1142/s0218863511006200
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发表时间：
2011-12
影响因子：
2.7
通讯作者：
Aki Shimamura;A. Priimagi;J. Mamiya;Motoi Kinoshita;T. Ikeda;A. Shishido
中科院分区：
文献类型：
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作者：
Aki Shimamura;A. Priimagi;J. Mamiya;Motoi Kinoshita;T. Ikeda;A. Shishido
我们研究了均匀排列的低偶氮苯浓度交联液晶聚合物的光响应行为。我们比较了薄膜的热收缩和光收缩，并且表明在UV照射下，它们有效地朝向光化光源弯曲。研究了连续波和纳秒脉冲辐照下的光致弯曲。脉冲辐照揭示了光机械响应可以在亚毫秒的时间尺度内发生，并且即使是单个激光脉冲也可以导致样品弯曲。
We have investigated the photoresponsive behavior of homogeneously aligned low-azobenzene-concentration crosslinked liquid-crystalline polymers. We compared the thermal contraction and photocontraction of the films, and show that upon UV irradiation, they bend efficiently towards the actinic light source. The photoinduced bending is studied both under continuous-wave irradiation and irradiation with nanosecond pulses. Pulsed irradiation revealed that the photomechanical response can take place within sub-millisecond time scale, and that even a single laser pulse can cause the sample to bend.