Title :
Synthesis and characterization of dimesogenic liquid crystalline compounds containing cholesteryl and azo-imine linking group
Author :
Xiaoping, Jing ; Changcheng, Wu
Author_Institution :
Tianjin Key Lab. of Fiber Modification & Functional Fiber, Tianjin Polytech. Univ., Tianjin, China
Abstract :
New non-symmetric dimesogenic liquid crystalline compounds containing cholesteryl moiety and azo-imine linking group interconnecting via different alkyl spacers were synthesized. The thermal properties were investigated by polarized optical microscopy (POM). These compounds have liquid crystalline properties over a much wide temperature ranges with characteristic textures. With decreasing length of the flexible spacer, the corresponding Tm, Ti of dimesogenic liquid crystalline compounds increased, and its mesophase temperature range widened.
Keywords :
liquid crystals; optical microscopy; organic compounds; texture; thermal properties; alkyl spacers; azo-imine linking group; cholesteryl linking group; flexible spacer length; liquid crystalline properties; mesophase temperature; nonsymmetric dimesogenic liquid crystalline compounds; polarized optical microscopy; textures; thermal properties; Compounds; Heating; Joining processes; Liquid crystals; Optical fiber communication; Optical polarization; Temperature distribution; azo-imine linking group; cholesterol; dimesogenic; liquid crystalline; synthesis;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
DOI :
10.1109/RSETE.2011.5965822
