Photomechanical Jumping of Liquid Crystalline Polymer Network Soft Robots with Varied Crosslinking Density
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초록
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Jumping motion allows for an effective overcoming of large obstacles via an instantaneous macroscopic deformation. A photomechanical jumping soft robot has been previously reported that is remotely powered through the embedment of a photoactive molecular switch into a liquid crystal polymer network (LCN) matrix. The adequate kinetic energy is required to overcome the body mass of a soft robot and is provided by a rapid light-triggered topological conversion. However, intense operating conditions including high light intensity are required to induce the desired photo-induced stress. Herein, we will report methodologies that can moderate the operating condition of photomechanical jumping. By regulating the crosslinking density of the LCN matrix, the magnitude of the photomechanical responses increases under milder light intensities.