177538-73-7Relevant academic research and scientific papers
Cholesteric fluorescent liquid crystal polysiloxanes with different liquid crystal side chain lengths—Synthesis and properties
Cong, Yue-hua,Gao, Shang,He, Xiao-zhi,Jia, Ying-gang,Liu, Ze-ping,Meng, Fan-bao,Zhang, Bao-yan
, (2020/07/03)
With polymethylhydrogensiloxane (PMHS) as the main chain, two series side-chain cholesteric liquid crystal polymers (ChLCPs) with different liquid crystal side chain lengths were prepared by hydrosilylation reaction. Then two series of cholesteric fluorescent liquid crystal polymers (FL-ChLCPs) were obtained by etherification reaction. The obtained FL-ChLCPs have both excellent mesomorphic behavior, and great photoluminescent property. We confirmed their chemical structures by FT-IR, and 1H NMR spectroscopy, and found them with excellent thermal stability by TGA. We characterized their mesomorphic behavior and thermal performance by POM, DSC and XRD, and confirmed all the polymers belonged to cholesteric phase. FL-ChLCPs emitted different-intensity fluorescence under UV light, and we found some regularity by PL spectrum.
Influence of interim alkyl chain length on phase transitions and wide-band reflective behaviors of side-chain liquid crystalline elastomers with binaphthalene crosslinkings
Wu, Xiaojuan,Cao, Hui,Guo, Renwei,Li, Kexuan,Wang, Feifei,Gao, Yanzi,Yao, Wenhuan,Zhang, Lanying,Chen, Xiaofang,Yang, Huai
experimental part, p. 5556 - 5566 (2012/08/28)
A series of side-chain polysiloxane liquid crystalline elastomers, E-Cm (where m is the number of carbon atoms in the interim alkyl groups, and m = 4, 6, 8, 10), with binaphthalene derivatives as crosslinkings, were designed and synthesized. The mesophase
Liquid Crystalline Main Chain Polysiloxane Esters and their Monomers. Part I: Synthesis of some di(ω-unsaturated esters) and their thermal behaviour
Kossmehl, G.,Gerecke, B.,Harmsen, N.,Schroeder, F.,Vieth, H. M.
, p. 39 - 54 (2007/10/02)
As starting material for liquid crystalline polyesters, a number of bisarenes (arising from the diols hydroquinone, 4,4'-biphenyldiol, 1,6-di(4-hydroxyphenyl)hexane, 2,7-fluorenediol and 2,7-fluorenonediol) have been synthesize
