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Shape selection of twist-nematic-elastomer ribbons

机译:扭曲向列弹性体带的形状选择

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摘要

How microscopic chirality is reflected in macroscopic scale to form various chiral shapes, such as straight helicoids and spiral ribbons, and how the degree of macroscopic chirality can be controlled are a focus of studies on the shape formation of many biomaterials and supramolecular systems. This article investigates both experimentally and theoretically how the chiral arrangement of liquid crystal mesogens in twist-nematic-elastomer films induces the formation of helicoids and spiral ribbons because of the coupling between the liquid crystalline order and the elasticity. It is also shown that the pitch of the formed ribbons can be tuned by temperature variation. The results of this study will facilitate the understanding of physics for the shape formation of chiral materials and the designing of new structures on basis of microscopic chirality.
机译:如何在宏观尺度上反映微观手性以形成各种手性形状,例如笔直的螺旋形和螺旋带状,以及如何控制宏观手性的程度是许多生物材料和超分子系统的形状形成研究的重点。本文在实验和理论上都研究了扭曲向列弹性体薄膜中液晶介晶的手性排列是如何由于液晶顺序和弹性之间的耦合而引起螺旋体和螺旋带的形成的。还示出了可以通过温度变化来调节所形成的带的节距。这项研究的结果将有助于理解物理学上手性材料的形状形成和基于微观手性的新结构设计。

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