圆盘柱状液晶在圆柱状孔中的方向过渡
Rui-Bin Zhang1, Marco A Grunwald2, Xiang-Bing Zeng1
1Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3Jd, UK. Pandagreater@gmail.com.
Soft matter
|July 24, 2024
概括
封闭的光盘液晶在毛孔中形成一个日志堆结构. 分子工程控制了六角格子的方向,使可调整的对齐用于应用.
科学领域:
- 材料科学 材料科学 材料科学
- 软物质物理学 软物质物理学
- 超分子化学 超分子化学
背景情况:
- 迪斯科式液晶表现出六角形的柱状相.
- 在圆柱形毛孔中被封闭会诱导特定的分子排列,比如日志堆配置.
- 六角格子与孔轴相对的方向对于材料性能至关重要.
研究的目的:
- 为了研究圆柱体孔内的光盘液晶六角格子的方向.
- 通过分子结构修改来证明对 (100) 平行和 (100) 垂直方向的控制.
- 为了建立一个全面的了解封闭的柱状液晶的行为在一系列的孔径大小.
主要方法:
- 改造的光盘液晶 (SATO7,HATS6,HATO6F8) 的实验合成和表征.
- 混焦显微镜和其他技术用于观察不同尺寸 (60nm到100μm) 的圆柱形孔中的液晶相.
- 在不同的封闭条件下,对孔轴的{100}平面方向的分析.
主要成果:
- 在较窄的孔隙中, (100) 平行方向是最受青的.
- 分子修改显著影响了 (100) 平行 - (100) 垂直过渡.
- 不对称的光盘 (SATO7) 破坏了 (100) 平行方向,而硫链 (HATS6) 和化链 (HATO6F8) 调节了它.
结论:
- 分子工程提供了一个强大的工具来控制受限的柱状液晶的对齐.
- 了解这些方向转换对于设计具有量身定制应用的液晶材料至关重要.
- 这项研究提供了一个详细的图片的结构属性关系在封闭的液晶.
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