Alcohols Effect on Critic Micelle Concentration of Polysorbate 20 and Cetyl Trimethyl Ammonium Bromine Mixed Solutions

Abstract

In this research, the micellar behavior of a cationic surfactant, cetyl trimethyl ammonium bromide (CTAB) and an nonionic surfactant, polysorbate 20 (Polyoxyethylene (20) sorbitan monolaurate) in different alcohol solutions media was investigated over the temperature range 293.15–313.15 K. The interaction between two surfactants in binary systems can be determined by calculating the values of their β parameters. The critical micelle concentrations (CMC) of the micelles were determined from the surface tension, the conductivity at different temperatures. The CMC behavior of CTAB and polysorbate 20 was analyzed in terms of the effect of temperature and the increase in the alcohol carbon chain. Changes in the critical micelle concentration of mixed surfactant systems of different alcohol solutions were measured. The CMC decreased sharply as the hydrocarbon chain length of the alcohols becomes larger. This shows that the more hydrophobic alcohols are, the more marked a decrease in CMC is observed.

Effect of hydrophilic ionic liquid on the micellar properties of aqueous Tween-20

“…Tween-20 is a common nonionic surfactant with extensive use in many biotechnical, pharmaceutical, industrial and domestic applications which includes solubilizing agent for membrane proteins, excipient to stabilize emulsions and suspensions, and for lysing mammalian cells. However, studies on the depiction of its micellar formation in ILs are rather scanty [15,22]. Such information concerning the micelle formation of nonionic surfactant in presence of imidazolium based IL must contribute to further understanding of self-assembling phenomena of amphiphilic compounds in ILs and is likely to open up new prospective for different applications.…”

Water‐Based Adhesives with Tailored Hydrophobic Association: Dilution Resistance and Improved Setting Behavior

“…A comprehensive understanding of the interaction mechanisms between micelles and amphiphilic additives can be acquired from the existing literature. [22][23][24][25][26][27][28] We propose a simplifi ed model to explain the mechanistic phenomena in HASE systems, based on micelle-like hydrophobic domains and the following hypothetical interactions: I) The alcohol molecules intercalate between the alkyl chains of the micelle-like aggregates, with the terminal hydrophilic head groups predominantly facing to the water interphase. The "packing parameter" of the hydrophobic moieties attached to the water-soluble polymer backbone is altered, an effect that is correlated with a modifi cation of the growth and shape of the quasimicelle.…”

Synthesis and Physico‐Chemical Properties of Sodium 3‐Oxo‐2‐(3‐(4‐sulphonatophenyl)triaz‐2‐enyl)octadecanoate Anionic Surfactant

“…This may be attributed to the incorporation of alcohol molecules within the micelle thus increasing the length between polar heads that causing the repulsive interactions to decrease [20]. Also, the hydrophobic part of alcohols may enhance the hydrophobic character of the surfactant that mainly favors micellization [3]. The decrease in CMC had become more pronounced with the increase in the alcohol alkyl chain in solutions containing an identical alcohol concentration (Fig.…”

“…Anionic surfactants are an important class of surfactants since they have a lower cost of manufacture in comparison with other classes of surfactants, and they are extensively used in industrial applications specially soaps and detergents [2]. The concentration of surfactant needed to initiate micelle formation is called the critical micelle concentration (CMC) [3]. The CMC can be determined by measuring physical properties that depend on the size or number of particles in solution as a function of concentration [4].…”