功能性超薄有序分子沉积膜的制备及其结构研究

Preparation and Characterization of Functional Ultrathin Ordered Molecular Deposition Film

1991年G.Decher等首次探讨了阴阳离子与聚电解质交替沉积制备有机超薄膜的方法。我们在完善成膜技术和发展成膜基质的基础上,详细研究了其成膜过程与膜的结构,并定义这种新的自组装超薄有序膜为分子沉积膜——MD膜。MD膜是利用阴阳离子的静电吸附反应特性,通过相反离子体系的交替分子沉积制备的层状有序自组装多层超薄膜。需要指出的是,分子沉积既是有机超薄膜的制备技术,本身又是一种自组装超薄有序膜。MD膜制备工艺简单,热稳定性和长期稳定性好,不受基体形状与面积限制。

The fabrication and structure characterization of a new kind of self-assemble film, molecular deposition (MD) film, were reported. According to the salt-forming reaction of organic or inorganic anionic and cationic compounds, an ordered layer structure ultrathin film was formed by alternative deposition of anionic polyelectrolyte (or bipolar) and cationic polyelectrolyte (or bipolar). MD is a novel technique for fabrication of organic ultrathin film, and also is a self-assemble ultrathin ordered film.