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Nonionic surfactant systems above the PIT Part II. Molecular aggregate structures

Conference paper
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 73)

Abstract

“New Trends in Colliod Science” contains the proceedings of the foundation meeting of the European Colloid and Interface Society (ECIS), October 1–3, 1986. Representatives from the major European groups working in this field contributed to the conference. The volume contains an up-to-date account of present developments in Colloid Science. The contributions cover a wide scope of subjects, and provide encouragement that structures and transport processes in dense colloidal systems can be understood on basic principles. The main subjects are include:
  • phase diagrams of new surfactant systems

  • microemulsions and their applications

  • vesicles and bilayers

  • transport properties of colloidal systems.

Abstract

For systems just above the PIT, attempts of correlation between phase behaviour in some ternary oil/nonionic surfactant/water systems and molecular structures are presented. The structural investigations have been performed mainly by small angle neutron scattering, making use of the contrast variation method. Emphasis is put on the morphology of the interfacial surfactant film: thickness of the hydrophobic and hydrophilic parts, oil and water penetration into the film, area per polar head, mean curvature. Results in various oil/surfactant systems show that apolar micellization and water solubilization are not markedly correlated. A whole picture of the evolution of the inverse structures is more specifically reported for decane/C12EO4 concerned especially with the influence of temperature.

Key words

Nonionic surfactant neutron scattering aggregate structure microemulsions water solubilization 

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Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1987

Authors and Affiliations

  1. 1.Laboratoire de Physico-Chimie des Colloides, UA 406 CNRS LESOCUniversité de Nancy I, Centre de 2éme cycle Faculte des SciencesVandoeuvre-lès-Nancy CedexFrance
  2. 2.Institut Laue Langevin 156 XGrenoble CedexFrance

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