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Molecular Modelling of Micellar Solutions

  • Sudhakar Puvvada
  • Daniel Blankschtein
Chapter

Abstract

We review a recently developed molecular-thermodynamic approach which consists of blending a molecular model of micellization with a thermodynamic theory of phase behavior and phase separation of isotropic micellar solutions. The molecular model incorporates the effects of surfactant molecular architecture and solvent properties on the physical factors which control micelle formation and growth. The approach can predict whether the micelles that form are spheroidal, cylindrical, or disc-like in shape. The approach is also capable of predicting micellar solution properties as a function of surfactant concentration and temperature. These properties include (i) critical micellar concentration, (ii) micellar size distribution and its characteristics, (iii) critical surfactant concentration for the onset of phase separation, and (iv) other thermodynamic properties such as the osmotic compressibility. The molecular- thermodynamic approach provides an accurate description of a wide range of experimental findings in aqueous micellar solutions of nonionic surfactants belonging to the polyoxyethylene glycol monoether family.

Keywords

Surfactant Concentration Nonionic Surfactant Micellar Solution Aggregation Number Critical Micellar Concentration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • Sudhakar Puvvada
    • 1
  • Daniel Blankschtein
    • 1
  1. 1.Department of Chemical EngineeringMassachusetts Institute of TechnologyCambridgeUSA

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