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研究了两种具有两条脂链的羟基卟啉在气液界面上的成膜性能及其ＬＢ膜。ＵＶ－Ｖｉｓ光谱表明，两种卟啉在ＬＢ膜中的聚集态不同，卟啉环上脂链和羟基呈对称取代时形成Ｊ－聚体，呈同侧取代时形成氢键聚集体。利用偏振ＵＶ－Ｖｉｓ吸收谱测定了ＬＢ膜中卟啉环的取向。结果表明，侧链和羟基的相对位置对环的取向没有影响，但影响膜中平均分子截面积的大小和环间的距离，因而影响膜中分子的聚集态。
The film-forming properties of two hydroxy-porphyrins with two aliphatic chains at gas-liquid interface and their LB films were studied. UV-Vis spectra showed that the aggregation of two porphyrins in LB films was different. The symmetrical substitution of aliphatic chains and hydroxyl groups on the porphyrin ring resulted in the formation of J-mers. The orientation of the porphyrin rings in LB films was determined by polarized UV-Vis absorption spectroscopy. The results showed that the relative position of side chain and hydroxyl group had no influence on the orientation of the ring, but affected the average molecular cross-sectional area and the distance between the rings in the membrane, thus affecting the aggregation state of the molecules in the membrane.