Photomobile Polymer Materials with Crosslinked Liquid-Crystalline Structures: Molecular Design, Fabrication, and Functions
Photomobile Polymer Materials with Crosslinked Liquid-Crystalline Structures: Molecular Design, Fabrication, and Functions
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DOI：
10.1002/anie.201400513
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发表时间：
2014-09-22
影响因子：
16.6
通讯作者：
Ikeda, Tomiki
中科院分区：
文献类型：
--
作者：
Ube, Toru;Ikeda, Tomiki
在过去的十年中，由于其在各种应用中的潜力，如微致动器和微流体装置，在用光照射时宏观变形的交联液晶聚合物材料已被广泛研究。这些材料的基本运动是收缩-膨胀和弯曲-伸直，主要在含有光致变色部分的聚硅氧烷和聚丙烯酸酯中观察到。其他复杂的运动，如扭转，振荡，旋转和平移运动也已实现。近年来，人们通过分子结构的修饰、新的制备方法的开发和复合结构的构建来努力改善这类新型材料的光响应和机械性能。本文综述了光致发光材料的结构、功能、作用机理及其最新研究进展。
Crosslinked liquid-crystalline polymer materials that macroscopically deform when irradiated with light have been extensively studied in the past decade because of their potential in various applications, such as microactuators and microfluidic devices. The basic motions of these materials are contraction-expansion and bending-unbending, which are observed mainly in polysiloxanes and polyacrylates that contain photochromic moieties. Other sophisticated motions such as twisting, oscillation, rotation, and translational motion have also been achieved. In recent years, efforts have been made to improve the photoresponsive and mechanical properties of this novel class of materials through the modification of molecular structures, development of new fabrication methods, and construction of composite structures. Herein, we review structures, functions, and working mechanisms of photomobile materials and recent advances in this field.