Broadband reflection in polymer stabilized cholesteric liquid crystal   films with stepwise photo-polymerization

doi:10.1039/c6cp07066c

CORC > 北京大学 > 化学与分子工程学院

	Broadband reflection in polymer stabilized cholesteric liquid crystal films with stepwise photo-polymerization
	Duan, Man-yu ; Cao, Hui ; Wu, Yong ; Li, Er-li ; Wang, Hui-hui ; Wang, Dong ; Yang, Zhou ; He, Wan-li ; Yang, Huai
刊名	PHYSICAL CHEMISTRY CHEMICAL PHYSICS
	2017
关键词	PITCH GRADIENT OPTICAL-PROPERTIES LIGHT-REFLECTION POLARIZERS NETWORK ELASTOMERS GELS
DOI	10.1039/c6cp07066c
英文摘要	In this study, we demonstrate a novel method for fabricating polymer stabilized cholesteric liquid crystal (PSCLC) films with non-uniform pitch distribution by utilizing two kinds of photo-induced processes. Based on the large HTP temperature dependence of a chiral dopant, polymer networks were formed at two distant temperature points in sequence. The influence of the polymerization conditions on the reflectance properties of PSCLCs before and after polymerization was investigated. The results strongly suggest that the location and bandwidth of the reflection band can be controlled preferably by adjusting the ultraviolet light intensity and irradiation time of UV-light. In addition, the morphology of the polymer network in the composites was studied using scanning electron microscopy (SEM). A general correlation between polymerization conditions, the network morphology, and the reflective region will be outlined.; National Natural Science Foundation of China [51473020, 61370048, 51333001, 51373024]; National Key Basic Research Program of China [2014CB931804]; Fundamental Research Funds for the Central Universities [FRF-TP-15-003A3]; SCI(E); ARTICLE; 3; 2362-2367; 19
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/476126]
专题	化学与分子工程学院工学院
推荐引用方式 GB/T 7714	Duan, Man-yu,Cao, Hui,Wu, Yong,et al. Broadband reflection in polymer stabilized cholesteric liquid crystal films with stepwise photo-polymerization[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2017.
APA	Duan, Man-yu.,Cao, Hui.,Wu, Yong.,Li, Er-li.,Wang, Hui-hui.,...&Yang, Huai.(2017).Broadband reflection in polymer stabilized cholesteric liquid crystal films with stepwise photo-polymerization.PHYSICAL CHEMISTRY CHEMICAL PHYSICS.
MLA	Duan, Man-yu,et al."Broadband reflection in polymer stabilized cholesteric liquid crystal films with stepwise photo-polymerization".PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2017).