末端叠氮基偶氮苯化合物的制备及液晶性质表征

Synthesis and characterization of azide-terminated azobenzene compounds

通过对偶氮苯原料化合物的修饰最终制备得到末端带叠氮基偶氮苯化合物,所得目标产物经1HNMR、13CNMR、FT-IR和元素分析确证化学结构。利用示差扫描量热法(DSC)及偏光显微镜(POM)研究其相转变行为,结果表明,目标产物在升温39.2～69.7℃以及降温65.7～14.3℃范围内具有液晶性质,而4,4'-二(6-叠氮己氧酰基)偶氮苯无液晶性质。

Azide-terminated azobenzene compounds were synthesized via the modification of the azobenzene raw materi- al and the resulting compounds were confirmed by I HNMR, 13CNMR,FT-IR and elemental analysis. The phase transition behaviors were investigated by differential scanning calorime- try （DSC） and polarized optical microscopy （POM）. The tar- get compound exhibited mesomorphie behavior both from 39.2 ℃ to 69.7 ℃ upon heating and from 65.7 ℃ to 14.3℃ upon cooling, while 4,4＇-his （ 6-azidohexyioxyearbon- yl） azobenzene is a crystalline compound.