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Ferrocene‐Based Cationic Surfactants: Surface and Antimicrobial Properties
Author(s) -
Hafiz Amal A.,
Badawi A. M.,
ElDeeb F. I.,
Soliman E. A.,
ElAwady M. Y.,
Mohamed D. E.
Publication year - 2010
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/s11743-009-1140-8
Subject(s) - chemistry , critical micelle concentration , cationic polymerization , ferrocene , pulmonary surfactant , adsorption , surface tension , gibbs isotherm , micelle , fourier transform infrared spectroscopy , ammonium , inorganic chemistry , nuclear chemistry , organic chemistry , aqueous solution , chemical engineering , electrochemistry , biochemistry , physics , electrode , quantum mechanics , engineering
A novel series of ferrocenyl surfactants was synthesized by the reaction of ferrocene disulfonic acid with different primary and tertiary fatty amines to produce the corresponding ammonium salts Fc[SO 3 − + NH 3 (CH 2 ) n CH 3 ] 2 , where n = 9, 11, or 15 and Fc[SO 3 − + NH(CH 3 ) 2 (CH 2 ) n CH 3 ] 2 , where n = 7 or 11, respectively, and where Fc = ferrocene. Chemical structures were confirmed by microelemental analysis, FTIR, and 1 H NMR spectroscopy. The critical micelle concentration of each prepared surfactant was determined using equilibrium surface tension. Furthermore, air/water interface parameters including effectiveness ( π CMC ), efficiency (Pc 20 ), maximum surface excess (Г max ), and minimum surface area ( A min ) were determined at 30, 40, and 50 °C. Thermodynamic parameters (Δ G °, Δ S °, and Δ H °) for both micellization and adsorption processes were recorded. The new synthesized surfactants were screened as antimicrobial agents against different bacterial and fungal organisms.