Topology and dynamics of liquid crystalline soft matter under external fields

外场作用下液晶软物质的拓扑和动力学

• 批准号: 21740306
• 负责人: NA Yangho
• 金额: $ 2.83万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21740306/
• 关键词: ソフトマター; 液晶; トポロジー; ダイナミクス; 非相溶混合流体; 電場応答; 液晶エラストマー

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

我已经在稳定的剪切流动下测量了剪切应力对正弦电场的响应，这是在不混溶的液晶/聚合物混合物的液滴分散相中，并根据maffettone-Minale模型进行了分析。显然表明，响应函数不是一种简单的松弛，而是阻尼振荡，该响应函数起源于速度梯度张量的反对称部分。另外，制备了手性晶状体液晶弹性体，并研究了通过电场的应用诱导的宏观变形。定量估计弹性膜中的二维应变张量

项目成果

電場下における非相溶高分子ブレンドのレオロジー

电场下不相容聚合物共混物的流变学

• 发表时间: 2009
• 作者: Y. H. Na;Y. Naruse;N. Fukuda;H. Orihara;Y. H. Na;Y. H. Na;H. Furukawa;H. Orihara;H. Orihara;折原宏;M. Sugiyama;Y.-H. Na;久保田匠;會田航平
• 通讯作者: 會田航平