新型含磺酸基Schiff碱型液晶化合物的合成与表征  

Synthesis and Characterization of Novel Schiff Base Liquid Crystal Compound Containing Sulfonate Group

作　　者：孙中战[1] 高建峰[1] 周光强[1] 

机构地区：[1]中北大学理学院化学系,山西太原030051

出　　处：《合成化学》2010年第5期618-621,共4页Chinese Journal of Synthetic Chemistry

摘　　要：对羟基苯甲醛与对氨基苯磺酸经缩合反应制得Schiff碱化合物（1）。对羟基苯甲酸经醚化、酯化、酰氯化后再与1完成酯化反应合成了新型含磺酸基Schiff碱型液晶化合物——[4-（对磺酸苯亚胺基）甲苯基]-4-（ω-甲基丙烯酸乙氧基酯）-苯甲酸酯（5）,其结构经1H NMR和IR表征。偏光显微镜与DSC检测结果表明,5具有近晶A型液晶特性,液晶变化范围189.45℃~267.65℃。Novel Schiff base liquid crystal compound containing sulfonate group,[4-（p-sulfophenylimino）tolyl]-4-（ω-oxethylmethacrylate）-benzoate（5）,was synthesized from p-hydroxybenzoic acid by etherification wiht chlorohydrin,esterification with methacrylic acid,chloration with SOCl2,and then esterification with Schiff base compound which was prepared by condensation reaction of p-hydroxybenzaldehyde with sulfanilic acid.The structure was characterized by 1H NMR and IR.The phase behaviors of 5 were observed by differential scanning calorimeter and polarization microscope.The results showed that 5 exhibited the speciality of Smectic A liquid crystal with the liquid crystal variation range of 189.45 ℃～267.65 ℃.

关 键 词：SCHIFF碱 液晶 近晶A型 合成 

分 类 号：O625.52[理学—有机化学]