Water-soluble polymers with dilute lamellar surfactants

Interaction of Water-Soluble Polymers with Dilute Lamellar Surfactants... 

Therefore, methods of stabilizing dispersions against water injection (e.g., use of other surfactants, lamellar liquid crystals, use of very dilute solutions of water-soluble polymers with surfactants) might aid commercialization by reducing surfactant costs. 

In order to emphasize the role of the inter facial films and to highlight the most recent viewpoints on the stability of microemulsions, sponge phases, and dilute lamellar phases, some of the experimental facts about phase behavior of microemulsion systems containing alcohol are reviewed in this chapter. The systems investigated consist of water, oil, alcohol, and sodium dodecylsulfate (SDS). In the next section, the theoretical aspects of the stability of surfactant phases are briefly discussed. Then in Secs. Ill and IV the effects of varying alcohol and oil chain lengths and the addition of a water-soluble polymer are examined. The examination of multiphase regions provides the location of lines of critical points or critical endpoints. This chapter also deals with the study of several physical properties in the vicinity of critical points. 

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