Quaternary Ammonium-Type Gemini Surfactants Synthesized from Oleic Acid: Aqueous Solution Properties and Adsorption Characteristics

Sustainable oleic and stearic acid based biodegradable surfactants

“…[2][3][4][5] These new surfactants need to be developed using a sustainable approach and should contain biocompatible functional groups capable of undergoing biodegradation aer use. 6,7 Using renewable raw feedstock such as oleo-chemicals, 8,9 carbohydrates, 10,11 amino acids 12,13 etc. derived from natural sources for manufacturing surfactants will check the environmental issues since these surfactants aer degradation will only release back corresponding carbon to environment, which has been previously consumed by plant for making feedstock.…”

Physicochemical Properties of Oleic Acid-Based Partially Fluorinated Gemini Surfactants

“…In these papers, we reported not only the syntheses of these surfactants but also their dilute aqueous solution properties as a function of the length of the hydrocarbon chain covalently bound to the terminal carbonyl group of the oleic acid 5 8 . In addition, from the physicochemical standpoint, we studied the effects of molecular symmetry on the dilute aqueous solution properties using the sulfonate-type surfactants synthesized from oleic acid and petroselinic acid 6 , the characteristics of an insoluble monolayer film formed at the air/water interface using the carboxylate-type surfactants under acidic or neutral conditions 7 , and the adsorption characteristics of the cationic surfactants that occur at the silica/aqueous solution interface 8 .…”

Preparation and Physicochemical Properties of Lauroyl‐Glutamyl‐Lysil‐Lauroyl‐Glutamate Vesicles

“…The aggregate of any amphiphile is determined by the dimensionless ''critical packing parameter'', V/al, where V is the hydrocarbon volume, a is the area of the head group and l is the critical length of the hydrocarbon chain [21]. When V/al \ 1/3, the amphiphiles aggregate to form spherical micelles, whereas bilayers form for 1/2 \ V/al \ 1 [21]; the gemini-type amphiphile is especially easily to form more than monomeric surfactants [22,23]. In C 12 -GLG-C 12 solutions, micelles were formed [15] more than CMC (the CMC of C 12 -GLG-C 12 is 0.01 wt%, measured by Denuce's method).…”