Effect of Organic Counterions on the Properties of N-Lauryl Diisopropanolamine Surfactants |
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| Authors: | Ziyafaddin H Asadov Khuraman A Mammadova Gulnara A Ahmadova Saida F Ahmadbayova |
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| Institution: | Institute of Petrochemical Processes of Azerbaijan National Academy of Sciences, Baku, Azerbaijan |
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| Abstract: | The influence of counterions on the surface properties of N-lauryl diisopropanolamine surfactants is delineated using conductometry and surface tension measurements. Twelve types of organic counterions have been studied: C1–C12 monocarboxylic acids anions. The surface properties of the synthesized surfactants, including surface tension, critical micelle concentration (CMC), effectiveness (πCMC), efficiency (pC20), maximum surface excess (Γmax), minimum surface area (Amin), Gibbs energy of micellization (ΔGmic), and adsorption (ΔGad) processes in the aqueous. The biodegradability of the prepared surfactants was tested in river water using the die-away method. Petroleum-collecting and petroleum-dispersing capacities of the synthesized compounds on the surface of water of varying mineralization degree have been studied. |
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| Keywords: | Adsorption micellization petroleum-collecting surface tension surfactant |
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