Liquid Crystal Elastomer Actuators from Anisotropic Porous Polymer Template.
Liquid Crystal Elastomer Actuators from Anisotropic Porous Polymer Template.
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DOI：
10.1002/marc.201600699
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发表时间：
2017-05
影响因子：
4.6
通讯作者：
Qian Wang;Li Yu;Meina Yu;Dongyu Zhao;Ping Song;Hun Chi;Lin Guo;Huai Yang
中科院分区：
文献类型：
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作者：
Qian Wang;Li Yu;Meina Yu;Dongyu Zhao;Ping Song;Hun Chi;Lin Guo;Huai Yang
控制液晶的自组装行为是将其设计为智能执行器的一个基本问题。这里，各向异性多孔聚偏二氟乙烯薄膜被用作模板来诱导液晶的均匀排列。基于液晶取向行为与各向异性多孔聚偏氟乙烯薄膜表面微结构的关系，阐述了各向异性多孔聚偏氟乙烯薄膜引起液晶取向的机理。通过液晶单体在涂有各向异性多孔薄膜的液晶盒中的光聚合作用，实现了响应速度快、应变变化大和可逆驱动行为的液晶弹性体致动器。
Controlling self-assembly behaviors of liquid crystals is a fundamental issue for designing them as intelligent actuators. Here, anisotropic porous polyvinylidene fluoride film is utilized as a template to induce homogeneous alignment of liquid crystals. The mechanism of liquid crystal alignment induced by anisotropic porous polyvinylidene fluoride film is illustrated based on the relationship between the alignment behavior of liquid crystals and surface microstructure of anisotropic polyvinylidene fluoride film. Liquid crystal elastomer actuators with fast responsiveness, large strain change, and reversible actuation behaviors are achieved by the photopolymerization of liquid crystal monomer in liquid crystal cells coated with anisotropic porous films.