Multiscale modeling and its validation of the trans-cis-trans reorientation-based photodeformation in azobenzene-doped liquid crystal polymer
| Autor: | Hayoung Chung, Jung-Hoon Yun, Maenghyo Cho, Chenzhe Li, Joonmyung Choi |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science Applied Mathematics Mechanical Engineering Doping Thermodynamics 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Curvature 01 natural sciences Multiscale modeling 0104 chemical sciences chemistry.chemical_compound Monomer Light propagation chemistry Azobenzene Mechanics of Materials Modeling and Simulation General Materials Science 0210 nano-technology Cis–trans isomerism |
| Zdroj: | International Journal of Solids and Structures. 128:36-49 |
| ISSN: | 0020-7683 |
| DOI: | 10.1016/j.ijsolstr.2017.08.011 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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