Topology and dynamics of liquid crystalline soft matter under external fields

测量了不相容液晶/聚合物共混物液滴分散相在恒定剪切流作用下，剪切应力对正弦电场的响应，并根据Maffetone-Minale模型进行了分析。结果表明，响应函数不是简单的松弛，而是由速度梯度张量的反对称部分引起的阻尼型振荡。另外，制备了手性近晶液晶弹性体，并研究了电场作用下的宏观变形。定量地估计了弹性体膜中的二维应变张量。

I have measured the response of shear stress to sinusoidal electric fields under steady shear flow in the droplet dispersed phase of an immiscible liquid crystal/polymer blend and analyzed it on the basis of the Maffettone-Minale model. It was obviously shown that the response function was not a type of simple relaxation but of damped oscillation, which was originated from the antisymmetrical parts of the velocity gradient tensor. Additionally chiral smectic liquid crystal elastomers were prepared and the macroscopic deformation induced by the application of electric field was investigated. The two-dimensional strain tensors in an elastomer film were quantitatively estimated