摘要
研究了５，１０，１５，２０－四（对－山嵛酸乙酯－α－氧代苯基）卟啉分子在气液界面的成膜性，制备了该化合物的多层ＬＢ膜，研究了分子中不同的基团在ＬＢ膜中的取向，观测了ＬＢ膜的形貌和厚度。利用偏振ＵＶ－Ｖｉｓ和偏振ＦＴ－ＩＲ谱测定了分子内卟啉环和脂链取代基的取向，结果表明卟啉环面法线和脂链轴线与载片法线间的夹角分别为３７°和２７°。利用ＴＥＭ观测了ＬＢ膜的形貌和厚度，结果表明ＬＢ膜表面均匀，单层厚度大约为２．０ｎｍ。
Molecular orientation,surface morphology and thickness of 5,10,15,20-tetra-p-oxy(α-ethlbehenate)phenylporphyrin LB films were studied by UV-Vis spectra,FT-IR spectra,TEM and X-ray diffraction techmiques.The following conclusions can be obtained:(1) Porphyrin ring and the aliphatic chains of porphyrin were all tilted to the substrate.(2) The surface of LB films was homogeneous and the thickness of monolayer was about 2.0nm.
基金
国家自然科学基金
