A Study on the Electro-Optical Properties of Thiol-Ene Polymer Dispersed Cholesteric Liquid Crystal (PDChLC) Films.
A Study on the Electro-Optical Properties of Thiol-Ene Polymer Dispersed Cholesteric Liquid Crystal (PDChLC) Films.
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硫醇烯聚合物分散胆甾型液晶(PDChLC)薄膜电光性能的研究
DOI：
10.3390/molecules22020317
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发表时间：
2017-02-22
期刊：
影响因子：
--
通讯作者：
Li K
中科院分区：
文献类型：
--
作者：
Sun Y;Gao Y;Zhou L;Huang J;Fang H;Ma H;Zhang Y;Yang J;Song P;Zhang C;Zhang L;Li F;Zhao Y;Li K
在这项研究中，聚合物分散液晶（PDChLC）薄膜通过一个基于硫醇-丙烯酸酯反应体系的光聚合的一步制备技术得到的制备和表征的第一次。系统地研究了手性掺杂剂、硫醇单体官能度和含量对PDChLC膜的形貌和后续性能的影响。结果表明，少量手性掺杂剂的加入略微提高了驱动电压，但显著降低了关态透过率。此外，扫描电子显微镜（SEM）显示，液晶（LC）液滴的大小在第一次减少，然后增加硫醇单体官能度的量，而增加硫醇含量增加的LC液滴的大小。相应地，电光切换行为直接取决于LC液滴尺寸。通过调整原料组成，制备了具有最佳电光性能的PDChLC薄膜。
In this study, a polymer dispersed cholesteric liquid crystal (PDChLC) film obtained via a one-step fabrication technique based on photopolymerization of a thiol-acrylate reaction system was prepared and characterized for the first time. The effects of the chiral dopant, the influence of thiol monomer functionality and content on the morphology and subsequent performance of the PDChLC films were systematically investigated. It was demonstrated that the addition of a small amount of chiral dopant slightly increased the driving voltage, but decreased the off-state transmittance significantly. Furthermore, scanning electron micrographs (SEM) shown that the liquid crystal (LC) droplet size decreased at first and then increased with the increasing amount of thiol monomer functionality, while increasing the thiol content increased the LC droplet size. Correspondingly, the electro-optical switching behavior was directly dependent on LC droplet size. By tuning the raw material composition, PDChLC film with optimized electro-optical performance was prepared.
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影响因子：
9.5
作者：
Cheng, Zhangxiang;Wang, Tianjie;Yu, Haifeng
通讯作者：
Yu, Haifeng
影响因子：
4
作者：
DOANE, JW;VAZ, NA;ZUMER, S
通讯作者：
ZUMER, S
影响因子：
4
作者：
Masutani, A.;Roberts, T.;Sakaigawa, A.
通讯作者：
Sakaigawa, A.
影响因子：
4.5
作者：
Oh, Seung-Won;Baek, Jong-Min;Yoon, Tae-Hoon
通讯作者：
Yoon, Tae-Hoon
影响因子：
2.2
作者：
WU, BG;ERDMANN, JH;DOANE, JW
通讯作者：
DOANE, JW