螺旋扭曲力常数对常黑聚合物稳定胆甾液晶光电性能的影响

液晶与显示 , 2016, 31(4): 358-362. doi: 10.3788/YJYXS20163104.0358

螺旋扭曲力常数对常黑聚合物稳定胆甾液晶光电性能的影响

1.合肥工业大学光电技术研究院,安徽合肥,230009

2.合肥工业大学光电技术研究院,安徽合肥,230009

3.合肥工业大学光电技术研究院,安徽合肥,230009

4.合肥工业大学光电技术研究院,安徽合肥,230009

基金项目: National Natural Science Foundation of China(61107014) 科技部973计划前研专项(No.2012CB723406)National High Technology Research and Development Program of China(2012AA011901) National Basic Research Program of China(2012CB723406) 国家自然科学基金(61107014) 国家高技术发展计划(863计划)(2012AA011901)

关键词：聚合物稳定的胆甾相液晶 , 螺旋扭曲力 , 聚合物网络形貌 , 光电性能

Influence of helical twisting power on electro-optical properties of normal-mode polymer-stabilized cholesteric texture

Keywords： polymer-stabilized cholesteric texture , helical twisting power , electro-optic property , morphology of polymer network

本文研究了螺旋扭曲力常数(HTP)对常黑模式聚合物稳定的胆甾相液晶(NB-PSCT)网络形貌和光电性能的影响.选用3种不同HTP值的手性剂,通过紫外光聚合诱导相分离法(PIPS)制备了具有相同螺距的常黑模式聚合物稳定的胆甾相液晶.结果表明:随着手性剂的螺旋扭曲力常数增大,聚合物网络变得致密,网络和液晶分子之间的弹性作用力增大,阈值饱和电压减小,响应过程中的关闭时间增加,迟滞宽度增大.

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