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合成了一种含有偶氮基团的两亲性萘酚衍生物。该化合物在纯水亚相上能够形成稳定的单分子膜 ,并可转移到固体载体上形成LB膜。在LB膜中观测到酸致变色现象 ,即置于HCl气氛中的有序分子薄膜由黄色转变成紫色 ,而用NH3 气体处理该LB膜后 ,膜的颜色可以恢复如初。这一过程可以反复多次。
An amphiphilic naphthol derivative containing azo groups was synthesized. The compound is capable of forming a stable monomolecular film on the pure water sub-phase and can be transferred to a solid support to form an LB film. Acid induced discoloration was observed in the LB film, that is, the ordered molecular film placed in the HCl atmosphere turned from yellow to purple, while the film was restored to its original color with NH3 gas treatment. This process can be repeated many times.