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首页> 外文期刊>Advanced Functional Materials >Humidity-Responsive Liquid Crystalline Network Actuator Showing Synergistic Fluorescence Color Change Enabled by Aggregation Induced Emission Luminogen
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Humidity-Responsive Liquid Crystalline Network Actuator Showing Synergistic Fluorescence Color Change Enabled by Aggregation Induced Emission Luminogen

机译：湿度响应液晶网络致动器，展示聚集诱导发射光源的协同荧光变化

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摘要

Imitating the structures and behaviors of natural creatures is of great significance to scientists to explore novel materials for practical applications. However, the design and fabrication of biomimetic devices with complex and outstanding performances is still on the way. A bilayer film composed of liquid crystalline networks (LCN) film and hydrochromic aggregation-induced-emission molecule-doped hydrophilic layer is prepared. Under different relative humidity, the composite film can deform and change fluorescence color simultaneously. The influence of the content of the hydrophilic matrix on the fluorescent property and humidity-responsive behaviors of the bilayer film is investigated. Thanks to the mechanical anisotropy provided by uniform-aligned LCN film, different modes of deformation of the bilayer film are achievable, like bending, curling, and twisting. More importantly, due to the independence of the LCN film and the non-mesogenic molecules brought by this bimorph strategy, complex alignment of the LCN film and modification by immiscible molecules are realized in a single LCN actuator. Based on the functional composite film, artificial flowers showing synergistic blooming and shape-changing is prepared. By regulating the molecular alignment of the LC mesogens of the LCN film, the artificial flowers can imitate various blooming behaviors of natural flowers like confederate jasmine and jade lotus.
机译：模仿自然生物的结构和行为对科学家来说具有重要意义，用于探索实际应用的新材料。然而，具有复杂和出色的性能的仿生装置的设计和制造仍在途中。制备由液晶网络（LCN）膜和水红罗域聚集诱导发射分子掺杂亲水层的双层膜。在不同的相对湿度下，复合膜可以同时变形并改变荧光颜色。研究了亲水基质含量对双层膜的荧光性和湿度响应行为的影响。由于通过均匀排列的LCN膜提供的机械各向异性，可以实现双层膜的不同变形模式，如弯曲，卷曲和扭曲。更重要的是，由于LCN膜的独立性和这种双压脉策略所带来的非介晶分子，在单个LCN致动器中实现了LCN膜的复杂对准和通过不混溶的分子改性。基于功能性复合薄膜，制备了人造花，制备了表示协同盛开和形状变化的人造花。通过调节LCN膜的LC镁元素的分子比定，人造花可以模仿自然花朵的各种盛开的行为，如同盟茉莉和玉莲花。

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  • 来源
    《Advanced Functional Materials》 |2021年第17期|2010578.1-2010578.7|共7页
  • 作者

    Lan Ruochen; Gao Yanzi; Shen Chen; Huang Rui; Bao Jinying; Zhang Zhongping; Wang Qian; Zhang Lanying; Yang Huai;

  • 作者单位

    Peking Univ Coll Engn Beijing Adv Innovat Ctr Mat Genome Engn Beijing 100871 Peoples R China|Peking Univ Coll Engn Dept Mat Sci & Engn Beijing 100871 Peoples R China;

    Univ Sci & Technol Beijing Inst Adv Mat & Technol Beijing Adv Innovat Ctr Mat Genome Engn Beijing 100083 Peoples R China;

    Peking Univ Coll Engn Beijing Adv Innovat Ctr Mat Genome Engn Beijing 100871 Peoples R China|Peking Univ Coll Engn Dept Mat Sci & Engn Beijing 100871 Peoples R China;

    Univ Sci & Technol Beijing Sch Mat Sci & Engn Beijing 100083 Peoples R China;

    Peking Univ Coll Engn Beijing Adv Innovat Ctr Mat Genome Engn Beijing 100871 Peoples R China|Peking Univ Coll Engn Dept Mat Sci & Engn Beijing 100871 Peoples R China;

    Univ Sci & Technol Beijing Sch Mat Sci & Engn Beijing 100083 Peoples R China;

    Peking Univ Coll Engn Beijing Adv Innovat Ctr Mat Genome Engn Beijing 100871 Peoples R China|Peking Univ Coll Engn Dept Mat Sci & Engn Beijing 100871 Peoples R China;

    Peking Univ Coll Engn Beijing Adv Innovat Ctr Mat Genome Engn Beijing 100871 Peoples R China|Peking Univ Coll Engn Dept Mat Sci & Engn Beijing 100871 Peoples R China|Peking Univ Minist Educ Key Lab Polymer Chem & Phys Beijing 100871 Peoples R China;

    Peking Univ Coll Engn Beijing Adv Innovat Ctr Mat Genome Engn Beijing 100871 Peoples R China|Peking Univ Coll Engn Dept Mat Sci & Engn Beijing 100871 Peoples R China|Peking Univ Minist Educ Key Lab Polymer Chem & Phys Beijing 100871 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    actuator; humidity#8208; responsive; liquid crystalline networks; synergistic; tunable fluorescence colors;

    机译：执行器;湿度＆＃8208;响应;液晶网络;协同效应;可调荧光;

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