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合成了两种末端碳链长度不同的水杨醛类希夫碱N 十二烷基 ( 2 羟基 5 硝基苯甲亚胺 )和N 十六烷基 ( 2 羟基 5 硝基苯甲亚胺 ) ,研究了它们在气 液界面上的成膜性能 ,并通过紫外、荧光、红外显微镜等光谱手段对它们在LB膜上的性能进行了表征。实验结果表明两种希夫碱分子在LB膜中都形成了J 聚体 ,末端碳链较长的希夫碱的成膜性能相对较好 ,并且在膜上也能光致发光 ,但希夫碱分子的LB膜存在一定的缺陷
Two kinds of salicylaldehyde Schiff base N-dodecyl (2-hydroxy 5-nitrobenzimide) and N-hexadecyl (2-hydroxy 5-nitrobenzimide) Their film-forming properties at gas-liquid interface were studied. Their performances on LB films were characterized by UV, fluorescence and IR microscopy. The experimental results show that both Schiff base molecules form J-mers in the LB film, and the Schiff base with longer terminal carbon chain has better film-forming properties and can also cause photoluminescence on the film. However, Schiff The alkali molecular LB film has some defects