液晶弹性体在同位素溶剂中的异型膨胀行为
Limei Zhang1,2, Hong Li3, Wenjiang Zheng4
1School of Exercise and Health Sciences, Xi'an Physical Education University, Xi'an 710068, China.
Nanomaterials (Basel, Switzerland)
|March 26, 2025
概括
液晶弹性体 (LCE) 在有机溶剂中由于膨胀而表现出各种形状变化. 溶剂极性和LCE特性决定了收缩或延伸,为传感器开发提供了潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 软物质物理学 软物质物理学
背景情况:
- 液晶弹性体 (LCE) 具有改变形状的特性,具有先进应用的潜力.
- 对LCE对同otropic有机溶剂的反应是未被探索的,与对 anisotropic 溶剂的反应不同.
研究的目的:
- 研究各种同位素有机溶剂中对齐的LCEs的膨胀行为和形状变化的机制.
- 了解溶剂特性和LCE特征如何影响胀引起的变形.
主要方法:
- 使用表面对齐和aza-Michael加法与受控交联密度准备对齐的LCE.
- 在不同的同位素溶剂 (例如,乙,DMF,烯) 中对LCE胀的系统研究.
- 分析沿着和垂直于对齐方向的形状和体积变化.
主要成果:
- 在同位素溶剂中,LCEs表现出异型膨胀行为,导致方向收缩或延伸.
- 在,DMF和乙烯酸乙烯等溶剂中观察到的沿着对齐方向的收缩.
- 沿着对齐方向的延伸观察到的溶剂,如托卢烯和亚尼索尔;垂直延伸在大多数溶剂中.
- 观察到的形状变化与LCE中溶剂诱导的相变有关.
结论:
- 在有机溶剂中LCE的胀行为受到溶剂极性,LCE弹性模量和胀率的显著影响.
- 这些发现提供了对LCE-溶剂相互作用和相位过渡的基本见解.
- 这项研究为开发基于LCE的新型溶剂和气体传感器铺平了道路.
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