Abstract
Novel anionic surfactants containing azobenzene unit with fluorocarbon chain at the end of hydrophobic moiety have been synthesized. The compounds, 4-perfluoroalkylanilines, were prepared by the reaction of perfluoroalkyl iodides and aniline in the presence of copper bronze. Hydroxyazobenzene derivatives having fluorocarbon chain were obtained through the diazotization and followed by the azo-coupling reactions with phenol. In order to obtain a stable sulfate-type anionic surfactant, the intermediate, 2- [4- [4- (perfluoroalkyl) phenylazo] phenoxy] bromoethane, was derived to introduce a spacer chain by use of 1, 2-dibromoethane. Finally, four amphiphiles were synthesized by the reaction of sodium sulfate with the bromide derivatives. These products were characterized by 1H-NMR, IR, and Mass spectra.
