Chirality-enabled liquid crystalline physical gels with high modulus but low driving voltage
Chirality-enabled liquid crystalline physical gels with high modulus but low driving voltage
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具有高模量、低驱动电压的手性液晶物理凝胶
DOI：
10.1021/acsami.8b14488
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发表时间：
2018
影响因子：
9.5
通讯作者：
Smalyukh Ivan I
中科院分区：
文献类型：
--
作者：
Ruan Huan;Chen Guannan;Zhao Xiaoyu;Wang Yong;Liao Yonggui;Peng Haiyan;Feng Chuan Liang;Xie Xiaolin;Smalyukh Ivan I
具有容易的电光响应的自支撑液晶物理凝胶是高度期望的，但是它们的开发是具有挑战性的，因为储能模量和驱动电压两者都随着胶凝剂加载而同时增加。在此，我们报道了具有高模量但低驱动电压的液晶物理凝胶。这种行为是通过手性转移从分子水平的三维纤维网络的自组装过程中的1，4-苯二甲酰胺苯丙氨酸衍生物。有趣的是，临界凝胶浓度低至0.1重量%。我们的研究结果打开了理解和利用手性在有机凝胶中的作用的大门。
Self-supporting liquid crystalline physical gels with facile electro-optic response are highly desirable, but their development is challenging because both the storage modulus and driving voltage increase simultaneously with gelator loading. Herein, we report liquid crystalline physical gels with high modulus but low driving voltage. This behavior is enabled by chirality transfer from the molecular level to three-dimensional fibrous networks during the self-assembly of 1,4-benzenedicarboxamide phenylalanine derivatives. Interestingly, the critical gel concentration is as low as 0.1 wt %. Our findings open doors to understanding and exploiting the role of chirality in organic gels.