A comparison study between sodium dodecyl sulfate and sodium dodecyl sulfonate with respect to the thermodynamic properties, micellization, and interaction with poly(ethylene glycol) in aqueous solutions

Interaction Study of Anionic Surfactant with Aqueous Non‐Ionic Polymers from Conductivity, Density and Speed of Sound Measurements

“…Figure 4 reveals that the / v values increase non-linearly with [SDS] well below its CMC, but level off at higher concentration of SDS. This increase in / v values upon micellization can be attributed to the three different factors [33,34]:…”

Interactions of new 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) based surface active ionic liquids with amitriptyline hydrochloride: Micellization and interfacial studies

“…In the low concentration range, the increase of Ä is due to the increase of free DBU cations and bromide ions. Above the cmc, the change in specific conductivity has a smaller slope due to two reasons: (a) the binding of a fraction of the counterions around the micellar surface and consequently there is an effective loss of ionic charges and (b) the micelles can also contribute to charge transport to a lesser extent than the free ions owing to their low mobility [33]. The values of degree of counterion binding (g) may be evaluated from the degree of counterion dissociation which is further obtained from the ratio of post-to premicellar slopes using the specific conductance (Ä) isotherms [34].…”

The combined use of cationic palladium(II) with a surfactant for the C–H functionalization of indoles and pyrroles in water

“…Comparable activity was observed when the reaction was conducted in the presence of a sulfite-based surfactant with decreased isentropic compressibility (entry 8), which suggests that the reaction took place in the interior of micelles. 20 The use of surfactants with shorter chain length led to a reduction in catalyst performance, whereas the inclusion of a surfactant with extended chains afforded increased yield (entries 9 and 10). The use of palladium(II) catalyst combined with sodium dodecylbenzenesulfonate (SDBS) also exhibited superior performance (entry 11).…”