Elastic properties of bent-core nematic liquid crystals: the role of the bend angle
Elastic properties of bent-core nematic liquid crystals: the role of the bend angle
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DOI：
10.1080/02678292.2016.1232442
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发表时间：
2016-09
期刊：
影响因子：
2.2
通讯作者：
S. Kaur
中科院分区：
文献类型：
--
作者：
S. Kaur
十多年来，弯核液晶的向列相一直是人们研究的热点。由于具有双轴向列相的潜力以及高克尔常数、大挠曲电系数和反常弹性常数等有趣的特性，这些弯曲核材料一直是研究的焦点。本文提出了有趣的弹性行为在各种弯核化合物报告的一个小回顾。本文进一步以两种不同类型的弯核化合物为例：一种是由恶二唑衍生的，另一种是由噻二唑衍生的，强调了弯核化合物中弯曲角的重要性。通过分子场理论和原子模型，总结了弯曲弹性常数独特行为的普遍性。图形抽象
ABSTRACT The nematic phase formed from bent-core liquid crystals has been the focus of intensive research for more than a decade. With the potential of biaxial nematic phase and other interesting features, such as high Kerr constants, large flexoelectric coefficients and anomalous elastic constants, these bent-core materials have been in the limelight of research. This paper presents a mini-review of the interesting elastic behaviour reported in various bent-core compounds. The review further focusses on two different types of bent-core compounds as exemplars: one derived from an oxadiazole and other a thiadiazole, highlighting the importance of bend angle in bent-core compounds. The universality of the unique behaviour of bend elastic constants via molecular field theory and atomistic modelling has also been summarised. GRAPHICAL ABSTRACT