中文摘要：

以溴代十六烷、2,4-二羟基苯甲醛、苯胺、对苯二胺、联苯二胺为原料,经醚化和席夫碱反应合成中间体和新颖的具有芳香间隔基Gemini型席夫碱化合物以及相应的单体化合物。通过核磁共振、元素分析等对化合物的结构进行表征。利用紫外光谱和红外光谱研究了目标产物的间隔基效应和酸致变色性能。结果表明,随间隔基的变化,席夫碱衍生物的光谱性质发生了明显的变化。由于在溶液与浇铸膜中组装模式的不同,化合物的酸致变色的程度表现出明显的差异,具有广阔的应用前景。

英文摘要：

The related intermediate,monomer-type,and gemini-type Schiff base compounds with aromatic spacers were synthesized through etherification and Schiff base formation using cetyl bromide,2,4-dihydroxybenzaldehyde,aniline,p-phenylenediamine and benzidine as starting materials.The structures of these compounds were characterized by NMR and EA.The spacer effect and acidichromism properties of the Schiff bases were investigated using UV-vis and FT-IR spectroscopy.The results showed that the spectral properties of the Schiff base derivatives showed distinct characteristics with the change of spacer.Due to the different assembly modes in the bulk solution and the cast film,the degree of acidichromism showed great difference,which would have promising prospects for application.