Effect of cholesteric liquid crystalline elastomer with binaphthalene   crosslinkings on thermal and optical properties of a liquid crystal that   show smectic A-cholesteric phase transition

doi:10.1002/pat.3075

CORC > 北京大学 > 工学院

	Effect of cholesteric liquid crystalline elastomer with binaphthalene crosslinkings on thermal and optical properties of a liquid crystal that show smectic A-cholesteric phase transition
	Wu, Xiaojuan ; Cao, Hui ; Guo, Renwei ; Li, Kexuan ; Wang, Feifei ; Yang, Huai
刊名	先进技术聚合物
	2013
关键词	cholesteric liquid crystalline elastomer binaphthalene liquid crystals that show SmA-Ch phase transition phase behavior thermal-optical properties TEMPERATURE-DEPENDENCE NEMATIC ELASTOMERS CROSS-LINKING PITCH PIEZOELECTRICITY NETWORKS POLYMERS
DOI	10.1002/pat.3075
英文摘要	A side-chain polysiloxane cholesteric liquid crystalline elastomer (ChLCE) with binaphthalene derivate as crosslinkings and cholesterol derivate as liquid crystalline monomers was designed and synthesized. A binaphthyl chiral dopant (CD) was synthesized as well. The chemical structures and liquid crystalline properties of the ChLCE and the CD were characterized by Fourier transform infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, element analyses, differential scanning calorimetry and polarizing optical microscopy measurements. The helical twisting power of the ChLCE exhibited a turning point with changing temperature and was smaller than that of the CD. In addition, the effect of the ChLCE on phase transition temperatures and thermal-optical properties of a liquid crystal that show smectic A (SmA)-cholesteric (Ch) phase transition was studied. Worthily, the testing of the reflection wavelength with changing temperature suggested that the adding of the ChLCE in liquid crystals that show SmA-Ch phase transition can expedite their SmA-Ch transition. In addition, the network structure of the ChLCE may play a significant role in the accelerating of the transition. These properties provided theoretical and experimental foundations for applying ChLCE in thermally sensitive liquid crystal devices requiring fast response, such as thermally controllable windows, materials and displays. Copyright (c) 2012 John Wiley & Sons, Ltd.; Polymer Science; SCI(E); 1; ARTICLE; 2; 228-235; 24
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/239862]
专题	工学院
推荐引用方式 GB/T 7714	Wu, Xiaojuan,Cao, Hui,Guo, Renwei,et al. Effect of cholesteric liquid crystalline elastomer with binaphthalene crosslinkings on thermal and optical properties of a liquid crystal that show smectic A-cholesteric phase transition[J]. 先进技术聚合物,2013.
APA	Wu, Xiaojuan,Cao, Hui,Guo, Renwei,Li, Kexuan,Wang, Feifei,&Yang, Huai.(2013).Effect of cholesteric liquid crystalline elastomer with binaphthalene crosslinkings on thermal and optical properties of a liquid crystal that show smectic A-cholesteric phase transition.先进技术聚合物.
MLA	Wu, Xiaojuan,et al."Effect of cholesteric liquid crystalline elastomer with binaphthalene crosslinkings on thermal and optical properties of a liquid crystal that show smectic A-cholesteric phase transition".先进技术聚合物 (2013).