静电自组装制备含苝衍生物的纳米层状复合膜

采用静电自组装方法制备了稳定的含苝衍生物纳米层状复合膜．用石英晶体微天平(QCM)对静电自组装过程进行了原位监控，发现组装次数与QCM频率变化呈线性关系，通过静电吸附得到的多层累积薄膜具有层状结构，X射线光电子能谱图上出现苝衍生物的特征峰表明组装的薄膜中含有苝衍生物．原子力显微镜表征结果表明，复合膜在一定程度上规整并且均匀的覆盖在电极表面，但存在分子团聚现象，将苝衍生物小分子溶解在聚电解质溶液中作混合浸渍液，提高了组装薄膜的稳定性．

Preparation of the nano-layered perylene derivatives hybrid films by the technique of the electrostatic self-assembly

Two kinds of mixing dipping solutions of polyelectrolytes and perylene derivatives were used to fabricate the stable multilayer films of perylene derivatives by electrostatic self-assembly. The linear relationship between the thickness and the number of self-assembly processes was verified by quartz crystal microbalance (QCM), which implied that the hybrid films had layered structure. The existence of perylene derivatives in each layer of the films was confirmed by X-ray photoelectron spectroscopy (XPS). The morphology of the hybrid films was characterized by atomic force microscope and the results indicated that the films were flat with some particles on it and uniform to some extent. By prior mixing of perylene derivatives with polyelectrolyte, nano-layered hybrid films containing perylene derivatives are obtained. This method improves the stability of perylene derivatives in the alternate films, and is an extended method for layer-by-layer assembly technique of small molecules.