Photoinduced deformation of  liquid crystal polymers

Yuyun Liu; Jiu-an Lv; Futao Cheng; Yanlei Yu

doi:10.1117/12.2061762

7 October 2014 Photoinduced deformation of liquid crystal polymers

Yuyun Liu, Jiu-an Lv, Futao Cheng, Yanlei Yu

Proceedings Volume 9182, Liquid Crystals XVIII; 918214 (2014) https://doi.org/10.1117/12.2061762
Event: SPIE Organic Photonics + Electronics, 2014, San Diego, California, United States

Abstract

Utilizing an optimized azobenzene precursor and polydimethylsiloxane-soft-template-based secondary replication, we achieved light-driven switching of superhydrophobic adhesion of water droplets on a micro-arrayed liquid crystal polymer film, which is cross-linked in nematic phase and guarantees a satisfying stability for practical application. Regulated by alternating irradiation of UV-Vis light (365 nm/530 nm), the micro-arrayed film showed an ideal quick (< 1 min) and reversible switch of superhydrophobic adhesion. This kind of non-contact real-time controllable switching of microdroplet’s adhesion might inspire and facilitate the designs and applications in novel microfluidic devices.

Citation Download Citation

Yuyun Liu, Jiu-an Lv, Futao Cheng, and Yanlei Yu "Photoinduced deformation of liquid crystal polymers", Proc. SPIE 9182, Liquid Crystals XVIII, 918214 (7 October 2014); https://doi.org/10.1117/12.2061762

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