Surfactants

  • A. T. Florence
  • D. Attwood
Chapter

Abstract

Certain compounds, because of their chemical structure, have a tendency to accumulate at the boundary between two phases. Such compounds are termed amphiphiles, surface-active agents, or surfactants. The adsorption at the various interfaces between solids, liquids and gases results in changes in the nature of the interface which are of considerable importance in pharmacy. Thus, the lowering of the interfacial tension between oil and water phases facilitates emulsion formation, the adsorption of surfactants on the insoluble particles enables these particles to be dispersed in the form of a suspension, and the incorporation of insoluble compounds within micelles of the surfactant can lead to the production of clear solutions.

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Copyright information

© A. T. Florence and D. Attwood 1988

Authors and Affiliations

  • A. T. Florence
    • 1
  • D. Attwood
    • 2
  1. 1.Department of PharmacyUniversity of StrathclydeUK
  2. 2.Department of PharmacyUniversity of ManchesterUK

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