Surfactants in solution

Surfactants in Solution, edited byArun K. Chattopadhyay and K. L Mittal... 

Thermochemical and thermophysical properties are suitable for the elucidation of the structure-performance relationships of surfactants in solutions. The measurement of, for instance, integral dilution enthalpies provides an appropriate experimental basis [50,51]. The concentration functions of the dilution enthalpies of ammonium dodecane 1-sulfonate (Fig. 29) show a distinct depen-... 

Applied Surface Thermodynamics, edited by A. 14/. Neumann and Jan K. Spelt Surfactants in Solution, edited by Arun K. Chattopadhyay and K. L. Mittal Detergents in the Environment, edited by Milan Johann Schwuger Industrial Applications of Microemulsions, edited by Conxita Solans and Hironobu Kunieda... 

Adsorption and Aggregation of Surfactants in Solution, edited by K. L. Mittal and Dinesh O. Shah... 

Of special interest in liquid dispersions are the surface-active agents that tend to accumulate at air/ liquid, liquid/liquid, and/or solid/liquid interfaces. Surfactants can arrange themselves to form a coherent film surrounding the dispersed droplets (in emulsions) or suspended particles (in suspensions). This process is an oriented physical adsorption. Adsorption at the interface tends to increase with increasing thermodynamic activity of the surfactant in solution until a complete monolayer is formed at the interface or until the active sites are saturated with surfactant molecules. Also, a multilayer of adsorbed surfactant molecules may occur, resulting in more complex adsorption isotherms. 

Mittal, K. L. (Ed.), Surfactants in Solution, Vols 1-3, Plenum Press, New York, 1984. 

A K Chattopadhyay and K L Mittal, Surfactants in solution (New York Marcel Dekker, 1996). 

M. Fujihira, T. Kamei, H. Takano, and Y. Gotoh, 9th International Symposium on Surfactants in Solution, June 10-15,1992, Varna, Bulgaria. 

Since the Schmidt number Sc tends to be much greater than unity for surfactants in solution. Re > 1 generally implies high Peclet numbers. This case... 

Acevedo S, Ranaudo MA, Gutierrez LB, Escobar G (1996) Adsorption of high and low molecular weight natural surfactants at the crude water-oil interface and their influence on y-pH and y-time behavior. In Chattopadhay AK, Mittal KL (eds) Surfactants in Solutions. Marcel Dekker, New York, pp 221-231... 

The settling rate of the dispersions in cyclohexane initially increases with AOT adsorption but later decreases. The initial increase is attributed to the formation of interparticle surfactant aggregates (Fig. 39A). At higher concentrations, the adsorbed molecules aggregate with excess of surfactant in solution rather than with molecules on the particle, so that flocculation ceases to occur and the dispersion is restabilized. The schematic representation of the surfactant assemblies at the interface is as shown in Fig. 39B. 

Maestro M, Luisi PL (1986) In Proceedings of 8th International Symposium on Surfactants in Solution, New Delhi, Aug 22-28... 

In addition to the surface adsorption properties of surfactants, they also have the remarkable ability to self-assemble in aqueous solution. The structures spontaneously formed by surfactants in solution are created... 

Equations 1 and 2 provide the ability to make a priori predictions of mixed micellar behavior for binary systems of similar surfactants (easily extended to more than 2 components(10)) No mixture data is necessary to use these equations. If the overall concentration of the individual surfactants in solution are known. Equations 1 and 2 can be combined with a material balance to... 

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