Multiscale modeling and its validation of the trans-cis-trans reorientation-based photodeformation in azobenzene-doped liquid crystal polymer

作者：Yun Jung Hoon; Li Chenzhe; Chung Hayoung; Choi Joonmyung; Cho Maenghyo

来源：International Journal of Solids and Structures, 2017, 128: 36-49.

DOI：10.1016/j.ijsolstr.2017.08.011

• Photo-actuator
• Azobenzene
• Trans-cis-trans reorientation
• Multiscale
• Polymer

We propose a new model for predicting the trans-cis-trans reorientation (TCTR)-based photodeformation of the azobenzene-doped liquid-crystal polymer (azo-LCP). The model was validated through the results of a bi-directional photobending experiment performed at various temperatures and mole ratios of the azobenzene monomer within the azo-LCP. Through both numerical and experimental investigations, we found that the photobending curvature of the azo-LCP shows a maximum point at certain temperatures, but only shows a proportional relationship with the azobenzene mole ratio within the azo-LCP. We confirmed that this tendency is caused by the change in the polymeric constraint with the temperature and the low light propagation in azo-LCP.

• 出版日期2017-12-1