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通过表面压(π)-单分子面积(A)等温线研究了二茂铁亚胺环钯化合物的气-液界面行为。结果表明:升高亚相的温度、降低滴加成膜物质的浓度和挤压速度、挤压前停留一段时间均有利于亚相上形成致密、稳定的Langmuir膜。其原因可能是升高亚相温度能够增强亚相水分子和其表面成膜物质的流动性,降低挤压速度和挤压之前停留一段时间能够使聚集的成膜物质分散,从而有利于成膜物质在亚相表面形成致密、稳定的Langmuir膜。在优化的单层膜形成条件下,制备了二茂铁亚胺环钯化合物的Langmuir-Blodgett膜,其层数与紫外-可见光谱中的最大紫外吸收呈现良好的线性关系,表明此Langmuir-Blodgett膜具有良好的纵向均匀性和结构周期性,也进一步证实了亚相表面形成了致密、稳定的Langmuir膜。
The gas-liquid interface behavior of ferrocenylimine ring palladium compounds was investigated by surface pressure (π) - monomolecular area (A) isotherm. The results show that increasing the temperature of the subphase, decreasing the concentration and extruding speed of the added filming material and staying for a period of time before squeezing all contribute to the formation of a dense and stable Langmuir film on the subphase. The reason may be that increasing the temperature of the subphase can enhance the fluidity of the subphase water molecules and the film-forming substances on the surface thereof, reducing the extrusion speed and staying for a period of time before the squeezing can disperse the aggregated film-forming substances and thereby facilitate the film formation The material forms a dense, stable Langmuir membrane on the subphase surface. Langmuir-Blodgett films of ferrocenylimine ring palladium compounds were prepared under the optimized conditions of monolayer film formation. The number of layers showed a good linear relationship with the maximum ultraviolet absorption in the UV-visible spectrum, indicating that this Langmuir-Blodgett The film has good longitudinal uniformity and structural periodicity, further confirming that the dense and stable Langmuir film is formed on the subphase surface.