Wide-band reflective films produced by side-chain cholesteric   liquid-crystalline elastomers derived from a binaphthalene crosslinking   agent

doi:10.1016/j.polymer.2011.10.036

CORC > 北京大学 > 工学院

	Wide-band reflective films produced by side-chain cholesteric liquid-crystalline elastomers derived from a binaphthalene crosslinking agent
	Wu, Xiaojuan ; Yu, Lilong ; Cao, Hui ; Guo, Renwei ; Li, Kexuan ; Cheng, Zihui ; Wang, Feifei ; Yang, Zhou ; Yang, Huai
刊名	polymer
	2011
关键词	Cholesteric liquid-crystalline elastomers Binaphthalene Helical twisting power PITCH GRADIENT NEMATIC ELASTOMERS OPTICAL-PROPERTIES POLYMER NETWORKS PIEZOELECTRICITY MICROSTRUCTURE POLARIZERS
DOI	10.1016/j.polymer.2011.10.036
英文摘要	A series of novel side-chain cholesteric liquid-crystalline elastomers based on polysiloxane and cholesterol derivate monomer were prepared by adopting a crosslinking agent containing binaphthalene group. The chemical structures and mesomorphic properties of the monomers and elastomers were confirmed by FT-IR, H-1 NMR, DSC and POM measurements. Worthily, the elastomers exhibited unusual temperature dependence of the helical twisting power (HIP) which is demonstrated resulting from coordination of the crosslinking agent and the mesogenic units. With increase in temperature, the HTP of elastomers containing small quantity of the crosslinking unit exhibited a turning point, while that of elastomers comprising much more crosslinking unit shifted straight. Furthermore, a single layer wide-band reflective film with non-uniform pitch distribution was prepared by utilizing the HTP variety of elastomers with change in temperature. From scanning electron microscopy (SEM) investigations, the mechanism of the broadband reflection was verified. (C) 2011 Published by Elsevier Ltd.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000297539000019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Polymer Science; SCI(E); EI; 7; ARTICLE; 25; 5836-5845; 52
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/237540]
专题	工学院
推荐引用方式 GB/T 7714	Wu, Xiaojuan,Yu, Lilong,Cao, Hui,et al. Wide-band reflective films produced by side-chain cholesteric liquid-crystalline elastomers derived from a binaphthalene crosslinking agent[J]. polymer,2011.
APA	Wu, Xiaojuan.,Yu, Lilong.,Cao, Hui.,Guo, Renwei.,Li, Kexuan.,...&Yang, Huai.(2011).Wide-band reflective films produced by side-chain cholesteric liquid-crystalline elastomers derived from a binaphthalene crosslinking agent.polymer.
MLA	Wu, Xiaojuan,et al."Wide-band reflective films produced by side-chain cholesteric liquid-crystalline elastomers derived from a binaphthalene crosslinking agent".polymer (2011).