A homologous series of anionic surfactants, namely, sodium‐N‐(alkyloxycarbonyl) alanine (where alkyl=octyl‐, dodecyl‐, hexadecyl‐, and octadecyl‐) were synthesized having the formula: R‐OCO‐CH2NH‐CH2‐CH2‐COONa. Surface properties of their solutions, including surface tension, critical micelle concentration, effectiveness, maximum surface excess, and minimum surface area, were investigated for different concentrations at 25°C. The effects of these surfactants on the solubilization of a polar and a nonpolar solute were studied. Standard free energies of micellization and adsorption were calculated for the prepared surfactants in aqueous solution.
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Mohamed et al. (2004) studied this question.
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