Reflective Band Memory Effect of Cholesteric Polymer Networks Based on Washout/Refilling Method,Macromolecular Chemistry and Physics

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Reflective Band Memory Effect of Cholesteric Polymer Networks Based on Washout/Refilling Method
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2020-10-08 , DOI: 10.1002/macp.201900572
Dongdong Zhang ₁ , Weiting Shi ₁ , Hui Cao ₁ , Yinjie Chen ₂ , Limin Zhao ₁ , Ping Gan ₁ , Zhou Yang ₁ , Dong Wang ₁ , Wanli He ₁

Affiliation

The method of washout/refilling is applied to a polymer stabilized cholesteric liquid crystal. Polymer networks are prepared with different concentrations of monomers under different polymerization conditions. By refilling different solvents or liquid crystals into the polymer network, reflective bands with different central wavelength and bandwidth are observed. It is confirmed that the polymer network can reproduce the initial reflection band of cholesteric phase, and corresponding explanations are given. When polymers have denser networks and smaller micropores, it shows better memory effects on the reflective band. These results can be potentially used in reflective displays, optical shielding films, diffraction gratings, sensors, and so on.

中文翻译：

基于冲洗/填充方法的胆甾型聚合物网络的反射带记忆效应

冲洗/重新填充的方法应用于聚合物稳定的胆甾型液晶。在不同的聚合条件下用不同浓度的单体制备聚合物网络。通过将不同的溶剂或液晶重新填充到聚合物网络中，可以观察到具有不同中心波长和带宽的反射带。证实了聚合物网络可以再现胆甾相的初始反射带，并给出了相应的解释。当聚合物具有密集的网络和较小的微孔时，它在反射带上显示出更好的记忆效果。这些结果可潜在地用于反射显示器，光学屏蔽膜，衍射光栅，传感器等。

更新日期：2020-11-19

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