New liquid crystal formation induced by nanoscale phase separation composed of bent-core liquid crystal and rod-like cholesteric liquid crystal mixtures,Soft Matter

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New liquid crystal formation induced by nanoscale phase separation composed of bent-core liquid crystal and rod-like cholesteric liquid crystal mixtures
Soft Matter ( IF 2.9 ) Pub Date : 2020-11-12 , DOI: 10.1039/d0sm01748e
Yoichi Takanishi _{1,

2,

3,

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Affiliation

Herein, the local nano-structure in mixtures of a cholesteric liquid crystal mixture and a bent-core molecule was analyzed via the small-angle X-ray scattering. Accordingly, different types of orientational X-ray patterns were obtained, suggesting the different types of nanoscale phase separation, which depends on the cooling rate from the isotropic phase, and thus is related with the kinetics of the phase separation process. Particularly, in the gradual cooling process, a new structure with smectic order in the phase-separated system stably appeared, which is considered to be caused by the B4 filament. According to the structure analysis, it was found that the system composed of rod-like and bent-core molecules not only undergoes simple phase separation, but also an unexpected new functional structure can be constructed by the strong interaction.

中文翻译：

由弯曲核液晶和棒状胆甾型液晶混合物组成的纳米级相分离诱导的新液晶形成

在此，通过胆甾醇型液晶混合物和弯曲核分子的混合物中的局部纳米结构通过小角度X射线散射。因此，获得了不同类型的取向X射线图案，表明不同类型的纳米级相分离，这取决于来自各向同性相的冷却速率，并因此与相分离过程的动力学有关。特别地，在逐渐冷却过程中，稳定地出现了在相分离系统中具有近晶顺序的新结构，这被认为是由B4灯丝引起的。通过结构分析，发现由棒状和弯曲核分子组成的体系不仅经历简单的相分离，而且通过强相互作用也可以构建出意想不到的新功能结构。

更新日期：2020-11-12

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