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Aggregation of an anionic TPPS (tetrakis(4-sulfonatophenyl)porphine) on the spreading films of cationic amphiphiles containing one, two and four positive charges at the air/water interface were investigated. The positive charge centers in these amphiphiles were separated by a rigid spacer. It was found that TPPS in the subphase could aggregate onto the spreading films as J-aggregate. The complex films...
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