Chapter 8. Liquid–Fluid Interfaces

  1. Drew Myers

Published Online: 28 APR 2002

DOI: 10.1002/0471234990.ch8

Surfaces, Interfaces, and Colloids: Principles and Applications, Second Edition

Surfaces, Interfaces, and Colloids: Principles and Applications, Second Edition

How to Cite

Myers, D. (2002) Liquid–Fluid Interfaces, in Surfaces, Interfaces, and Colloids: Principles and Applications, Second Edition, John Wiley & Sons, Inc., New York, USA. doi: 10.1002/0471234990.ch8

Publication History

  1. Published Online: 28 APR 2002

ISBN Information

Print ISBN: 9780471330608

Online ISBN: 9780471234999

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Keywords:

  • surface tension;
  • surface mobility;
  • temperature effects on surface tension;
  • surface curvature;
  • dynamic surface tension;
  • surface tension of solutions;
  • surfactants;
  • adsorption;
  • Gibbs monolayers;
  • insoluble monolayer films;
  • surface pressure;
  • surface potential;
  • surface rheology;
  • gaseous films;
  • liquid films, condensed films;
  • mixed films;
  • polymers at surfaces;
  • deposited monolayer films

Summary

Chapter 8 provides an introduction to the phenomena encountered in liquid-fluid (vapor or liquid) interactions. It includes a more detailed definition of liquid surfaces including the concept of surface tension. Atomic and molecular mobility at liquid surfaces is described as well as the effects of temperature, curvature, and dynamics on surface properties. Theories on the surface properties of solutions, including liquid mixtures and ionic salts, are presented. Emphasis is placed on solutions of surface actives materials with the presentation of the concepts of monolayer adsorption, the Gibbs adsorption isotherm, the efficiency and effectiveness of surfactant adsorption, insoluble monolayers, surface pressure, surface potential, and surface rheology. The physical “states” of monolayer films (gaseous, liquid, and condensed) are described along with corresponding equations of state are introduced. The effects of the molecular structure of surfactant and polymer molecules, the nature of the substrate, temperature, etc., on the nature of monolayer films is covered.