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Synthesis and Biocidal Activity of Some Naphthalene‐Based Cationic Surfactants
Author(s) -
Aiad Ismail A.,
Badawi Abdelfatah M.,
ElSukkary Mohammed M.,
ElSawy Abdallah A.,
Adawy Ahmed I.
Publication year - 2012
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/s11743-011-1286-z
Subject(s) - chemistry , cationic polymerization , pulmonary surfactant , surface tension , adsorption , critical micelle concentration , ammonium bromide , gibbs isotherm , bromide , inorganic chemistry , cobalt , nuclear chemistry , micelle , organic chemistry , aqueous solution , biochemistry , physics , quantum mechanics
In this study, different cationic surfactants were prepared by reacting dodecyl bromide with tertiary amines to produce a series of quaternary ammonium salts that were converted subsequently to stannous and cobalt cationic complexes via complexing them with stannous (II) or cobalt (II) ions. Surface properties such as surface‐ and interfacial‐tension, and the emulsifying power of these surfactants were investigated. The surface parameters including critical micelle concentration, maximum surface excess, minimum surface area, tension lowering efficiency and effectiveness were studied. The free energy of micellization and adsorption were calculated. Antimicrobial activity was determined via the inhibition zone diameter of the prepared compounds, which was measured against six strains of a representative group of microorganisms. The antimicrobial activity of some of the prepared surfactants against sulfate reducing bacteria was determined by the dilution method. FTIR spectra, elemental analysis and a H 1 NMR spectrum were examined to confirm compound structure and purity. The results obtained indicate that these compounds have good surface properties and good biocidal effect on broad spectrum of micro organisms.