Wrinkled Liquid-Crystalline Microparticle-Enhanced Photoresponse of PDLC-Like Films by Coupling with Mechanical Stretching
- Yu, Haifeng
- Dong, Chong
- Zhou, WeiMin
- Kobayashi, Takaomi
- Yang, Huai
DOIAbstract
Photoresponsive behaviors are studied in hybrid liquid-crystalline (LC) films prepared with light-responsive LC polymer microparticles as dopants using photoinert polymers as a host material. Upon mechanical stretching, both topological shape change and mesogenic alignment occur in the LC polymer microparticles, enabling the polymer-dispersed LC (PDLC)-like films to bend toward a light source upon UV irradiation. The rough morphologies of the hydrophobic LC microparticles enhance their interactions with hydrophilic polymer substrates. The bilayer-like structures of the hybrid film formed in the fabrication processes are responsible for the photomechanical behavior, which is reversibly controlled by combing light irradiation with the stretch...
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