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Surface Parameters and Biological Activity of N ‐(3‐(Dimethyl Benzyl Ammonio) Propyl) Alkanamide Chloride Cationic Surfactants
Author(s) -
Shaban Samy M.,
Aiad Ismail,
Ismail Abdallah R.
Publication year - 2016
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-016-1795-x
Subject(s) - chemistry , cationic polymerization , pulmonary surfactant , adsorption , surface tension , amide , chloride , alkyl , benzyl chloride , fourier transform infrared spectroscopy , organic chemistry , polymer chemistry , chemical engineering , catalysis , biochemistry , physics , quantum mechanics , engineering
Three cationic surfactants containing amide groups were prepared by quaternization of dimethylaminopropylamine with benzyl chloride. FTIR and 1 H‐NMR spectroscopy were used to confirm the chemical structure of the prepared cationic surfactants. The surface parameters were estimated using surface tension measurements at three different temperatures. The prepared cationic surfactant showed a lower CMC than conventional cationic surfactants. Thermodynamic parameters of adsorption and micellization depend mainly of alkyl chain length and temperature. The adsorption process is more favorable than micellization. The biological activity of the three surfactants was estimated using inhibition zone showing that amidoamine cationic surfactants have good activity and the surfactants C12Bn is the most effective one.