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首页> 外文期刊>Advanced Materials >Calamitic Liquid-Crystalline Elastomers Swollen in Bent-Core Liquid-Crystal Solvents
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Calamitic Liquid-Crystalline Elastomers Swollen in Bent-Core Liquid-Crystal Solvents

机译：弯曲核心液晶溶剂中溶胀的卡拉米奇液晶弹性体

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摘要

Liquid-crystal elastomers (LCEs) combine the properties of liquid crystals (LCs) and rubber elasticity. They are unique materials in their ability to change shape spontaneously by large degrees as a consequence of their global orientational (nematic) or combined orientational/positional (smectic) order. LCE systems are thermo-tropic, and may also be responsive to light, magnetic fields, or electric fields. They have possible uses as artificial muscles or sensors in addition to being intriguing materials for basic research.rnBent-core nematic LCs (BCNs) are a relatively new class of mesogenic materials (compared to their calamitic-or rod-shaped-cousins). They exhibit both rich phase behavior and novel properties; they also hold the potential of fundamentally new technological applications. In particular, some BCNs have recently been shown to exhibit a giant flexoelectric effect (electric polarization induced by orientational distortion of the average direction of molecular alignment). Since the reported flexoelectric coefficients are some three orders of magnitude larger than standard calamitics, these BCNs have exciting potential for applications ranging from power generation to sensing.
机译：液晶弹性体（LCE）兼具液晶（LC）和橡胶弹性的特性。它们是独特的材料，由于其整体取向（向列）或取向/位置（近晶）组合而自发地大幅度改变形状。 LCE系统是热致性的，并且还可以响应光，磁场或电场。除了作为基础研究的有趣材料外，它们还可以用作人造肌肉或传感器。弯核向列型液相色谱（BCN）是一类相对较新的介晶材料（与cal胺或棒状堂兄相比）。它们具有丰富的相行为和新颖的特性。它们还具有从根本上讲新技术应用的潜力。特别是，最近发现一些BCN表现出巨大的柔电效应（由分子排列的平均方向的定向变形引起的电极化）。由于所报道的柔电系数比标准的激电系数大三个数量级，因此这些BCN在从发电到传感的应用中具有令人兴奋的潜力。

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  • 来源
    《Advanced Materials》 |2009年第16期|1622-1626|共5页
  • 作者

    Martin Chambers; Rafael Verduzco; James T. Gleeson; Samuel Sprunt; Antal Jakli;

  • 作者单位

    Liquid Crystal Institute, Kent State University Kent, OH 44240 (USA) Physics Department, Kent State University Kent, OH 44240 (USA);

    Center for Nanophase Materials Sciences Oak Ridge National Laboratory Oak Ridge, TN 37830 (USA);

    Physics Department, Kent State University Kent, OH 44240 (USA);

    Physics Department, Kent State University Kent, OH 44240 (USA);

    Liquid Crystal Institute, Kent State University Kent, OH 44240 (USA);

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