Rod-like Schiff Base Magnetic Liquid Crystals Bearing Organic Radical  

作　　者：郑敏燕 安忠维 

机构地区：[1]School of Chemistry & Materials Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China

出　　处：《Chinese Journal of Chemistry》2006年第12期1754-1757,共4页中国化学（英文版）

摘　　要：4 novel rod-like Schiff base magnetic liquid crystals have been prepared in which trans-bicyclohexyl or trans-cyclohexyl phenyl and biphenyl carboxylic acid phenol ester mesogenic cores with n-propyl and n-pentyl subsfituents were terminated by 4-amino-TEMPO （TEMPO=2,2,6,6-tetramethylpiperidine-l-oxyl）. Of these compounds the silk-like and schlieren textures were found from 4e and 4d by POM （Polarizing Optical Microscope）. DSC （Differential Scanning Calorimeter） measurements show that the mesophase exists from 4-6℃. EPR spectra reveal their paramagnetic properties.4 novel rod-like Schiff base magnetic liquid crystals have been prepared in which trans-bicyclohexyl or trans-cyclohexyl phenyl and biphenyl carboxylic acid phenol ester mesogenic cores with n-propyl and n-pentyl subsfituents were terminated by 4-amino-TEMPO （TEMPO=2,2,6,6-tetramethylpiperidine-l-oxyl）. Of these compounds the silk-like and schlieren textures were found from 4e and 4d by POM （Polarizing Optical Microscope）. DSC （Differential Scanning Calorimeter） measurements show that the mesophase exists from 4-6℃. EPR spectra reveal their paramagnetic properties.

关 键 词：liquid crystal magnetic property 4-amino-TEMPO texture 

分 类 号：O625.632[理学—有机化学] O753.2[理学—化学]