Study of the Interaction Between Methyl Orange and Mono and Bis‐Quaternary Ammonium Surfactants

Abstract

The solubilization and interaction of an azodye (methyl orange) with dodecyl trimethyl ammonium bromide and cationic gemini surfactants in the series of alkanediyl a,x-bis[(dimethyl alkyl ammonium)bromide)] referred to as (m-s-m), m = 10, 12, 14 and s = 2, 3, 4 were investigated by means of UV-Vis spectroscopy. Aggregation with the anionic dye was reflected by a hypsochromic shift with a decrease in the intensity of the absorption band. The results also show a bathochromic shift followed by a sharp increase in the intensity of the maximum absorption band k max after the critical micellar concentration (CMC). This indicates that the dye solubility increased with increasing surfactant concentration. It was also observed that the aggregation of surfactant and dye takes place at a surfactant concentration far below the CMC of the individual surfactant. The effects of the chain length as well as the spacer length of gemini surfactants on the critical aggregation concentration and CMC were also examined. Moreover, the partition coefficients between the bulk water and surfactant micelles K S and K X as well as the Gibbs energies of distribution of dye between the bulk water and surfactant micelles were determined using the pseudophase model. The effect of the hydrophobic chain length and spacer of gemini surfactants on the distribution parameters is also reported.

Synthesis and Surface Active Properties of Gemini Cationic Surfactants and Interaction with Anionic Azo Dye (AR52)

“…The electrostatic forces between positive charges of cationic surfactants and anionic sulfonate groups of the dye and hydrophobic forces cause the formation of the dye-surfactant complex. An interesting and most likely explanation involves the formation of dye aggregates in parallel orientation, the so, called H-aggregates [25,44,45].…”

Synthesis and Self‐Assembly Behavior of Comb‐Like Surfactant Polymethyl Methacrylate‐g‐Methoxy Polyethylene Glycol

“…It is poorly soluble in water; however, when the micelles are formed in aqueous solution, dimethyl yellow is solubilized into the hydrophobic region of micelles [27][28][29].…”

Physicochemical investigation and spectral properties of Sunset Yellow dye in cetyltrimethylammonium bromide micellar solution under different pH conditions

“…Over recent years, applications of surfactant–dye associations in diluted aqueous solutions have been widely studied in view of their immense practical importance. The study of the nature and strength of these interactions has resulted in remarkable practical applications in numerous dyeing processes such as textile dyeing and finishing, photography, printing, ink, and hair colouring, as well as applications in analytical chemistry, biochemistry, and photosensitisation research . In order to obtain good colour shade development and fastness, a comprehensive knowledge of the penetration of dye into the fibre interior is essential.…”