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Ulf Olsson. Portrait.

Ulf Olsson

Professor

Ulf Olsson. Portrait.

Dependence on oil chain-length of the curvature elastic properties of nonionic surfactant films: Droplet growth from spheres to a bicontinuous network

Author

  • Joakim Balogh
  • Ulf Olsson

Summary, in English

Using NMR self-diffusion and H-2-NMR relaxation experiments, we have investigated growth of oil-in-water microemulsion droplets when spontaneous curvature is lowered, starting at emulsification failure boundary. We compare two ternary nonionic microemulsion systems, containing penta-ethylene glycol dodecyl ether (C12E5), and decane or hexadecane, at same surfactant-to-oil ratio and approximately the same spontaneous curvature. Droplet growth in microemulsions appears in general to be only minor. Quantitative differences between the two systems indicate differences in the curvature elastic constants.

Department/s

  • Physical Chemistry

Publishing year

2007

Language

English

Pages

223-230

Publication/Series

Journal of Dispersion Science and Technology

Volume

28

Issue

2

Document type

Article

Publisher

Taylor & Francis

Topic

  • Physical Chemistry (including Surface- and Colloid Chemistry)

Keywords

  • self-diffusion and H-2 NMR relaxation
  • NMR
  • curvature energy
  • nonionic microemulsion
  • droplet growth

Status

Published

ISBN/ISSN/Other

  • ISSN: 0193-2691