金属表面席夫碱缓蚀剂自组装膜的制备及性能研究现状

Research Status of Preparation and Properties of Self-assembled Monolayers of Schiff Base on Metal Surface

席夫碱是由伯胺与活性羰基缩合而成的含有甲亚胺活性基团-RC=N-的一类有机化合物,能在金属表面发生化学吸附反应而形成结构稳定、排列紧密有序的自组装膜(SAMs);SAMs是一种有缓蚀性能的单分子膜,对基底金属有良好的防腐蚀作用。本文综述了近年来席夫碱类自组装膜的制备方法及自组装膜的表征技术,进一步概述了分子模拟及拓扑结构在腐蚀防护研究中的应用现状,展望了自组装膜的应用前景。

Shill bases are a class of organic compounds containing azomethine active groups-RC=N-, synthesized by the condensation of primary amine and active carbonyl. Shiff bases could form self-assembled monolayers （SAMs） through chemical adsorption on metal surface, stable and compactly arranged. SAMs are corrosion inhibition molecular films and have good corrosion resistance for the metal substrate. The ,methods of preparation and characterization of self-assembled monolayers （SAMs） are reviewed, the application status of the molecular modeling and topological structure in the corrosion protection are outlined, and the prospect of self-assembled monolayers （SAMs） are outlooked.