Humidity- and Photo-Induced Mechanical Actuation of Cross-Linked Liquid Crystal Polymers.

Liu, Yuyun; Xu, Bo; Sun, Shengtong; Wei, Jia; Wu, Limin; Yu, Yanlei · Adv Mater · 2017

basic_science · Level V

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Abstract

Azobenzene-containing cross-linked liquid crystal polymer films without hydrophilic groups exhibit dual-responsivity to humidity and UV light. The films realize not only a series of large and sophisticated contactless motions by utilizing moisture, including an inchworm walk, and tumbling locomotion, but also dual-mode actuation that can be applied in flexible electronics.