Investigation of mixed micellization study of sodium dodecyl sulfate and tetradecyltrimethylammonium bromide mixtures at different compositions: Effect of electrolytes and temperatures

Abstract

Herein, we employed the conductometric measurement technique for the estimation of the interaction between two oppositely charged surfactants (anionic, sodium dodecyl sulfate [SDS] and tetradecyltrimethylammonium bromide [TTAB]) in two chloride (NaCl/NH4Cl) salts in the range of temperatures from 298.15 to 318.15 K. The deviation of experimental critical micelle concentration (cmc) from the corresponding ideal values of cmc (cmcid), the values of interaction parameters (β), and activity coefficients (f1 and f2) of the components reveal the existence of the interaction amongst the investigated components. The attained cmc values for SDS/SDS + TTAB decline with the rise of temperature in H2O/electrolytes medium. The reduction of cmc in the presence of electrolytes reveals the facilitated micellization in the electrolyte medium. The assessed values of the micellar mole fraction of TTAB (X1) obtained from theoretical models signify the significant contribution of TTAB in SDS + TTAB mixed micellization. The estimated negative values of free energy ( ΔGmo) and excess free energy (ΔGex) of micellization reveal that micellization is spontaneous and mixed micelles are extra stable than distinct micelle, respectively. The enthalpy ( ΔHmo) and entropy ( ΔSmo) in addition transfer energies of micellization were also evaluated and explained thoroughly.

Role of carbonate electrolytes on interaction of quinolone drug with anionic surfactant at various temperatures: A conductometric study

“…Formerly, calculated ΔG o m and ΔH o m values are taken in Equation 5 for the measurement of ΔS o m : [7,25,53,54] ΔS…”

“…[4] Besides, surfactants are explosively employed as emulsifying, dispersing, and stabilizing agents in the pharmaceutical industries. [5][6][7][8] Again, the dyestuffs should be spread uniformly throughout the surface of the fabrics in the textile industries and surfactants help nicely as a dispersing agent. Surfactants are the most important ingredient in the laundry where cleaning procedures would be extremely difficult without surfactants.…”

Self-Assembling Systems Based on Pillar[5]arenes and Surfactants for Encapsulation of Diagnostic Dye DAPI

“…It attracts great attention due to their potential application in various fields and especially in biomedicine as nanocontainers for medicinal and imaging agents [44][45][46][47][48][49][50][51]. Consequently, it becomes possible to obtain both host-guest complexes and polyelectrolyte aggregates of macrocycle-surfactants by varying the stoichiometric composition of a Pillar [5]arenesurfactant mixture on the analogy of interpolyelectrolyte complexes (IPEC) based on oppositely charged polymers [52][53][54][55][56][57].…”

A conductivity and cloud point investigation of interaction of cationic and non-ionic surfactants with sodium carboxymethyl cellulose: effect of polyols and urea

“…Surfactants and polymers are very important chemical ingredients in different applied fields, e.g., pharmaceutical industries, food processing, textile industries, pulp and paper industries, metal extraction, oil recovery, and many more (Rosen 2004;Rub 2019, 2020a;Ahsan et al 2020;Zhou et al 2018;Jia et al 2019;Sandomierski et al 2020;Hasan et al 2020). In those applied fields, surfactants and polymers play a significant role as wetting, emulsifying, leveling, dispersing agent, etc.…”