The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Ulf Olsson. Portrait.

Ulf Olsson

Professor

Ulf Olsson. Portrait.

Dependence on oil chain length of the curvature elastic properties of nonionic surfactant films: Emulsification failure and phase equilibria

Author

  • Joakim Balogh
  • Ulf Olsson
  • J S Pedersen

Summary, in English

We compare two ternary microemulsions, stabilized by the nonionic surfactant pentaethylene-glycol-dodecyl-ether (C12E5), containing decane or hexadecane. The comparison involves phase behavior and properties of O/W droplet microemulsions investigated with SAXS, static and dynamic light scattering, and NMR. Striking differences are observed. The systems are analyzed in terms of curvature elastic properties of surfactant film. Apart from an increase of the spontaneous curvature, there also appears to be a small but significant increase in the saddle splay constant as the oil chain length is increased.

Department/s

  • Physical Chemistry

Publishing year

2006

Language

English

Pages

497-510

Publication/Series

Journal of Dispersion Science and Technology

Volume

27

Issue

4

Document type

Article

Publisher

Taylor & Francis

Topic

  • Physical Chemistry (including Surface- and Colloid Chemistry)

Keywords

  • phase equilibria
  • surfactants
  • nonionic
  • spontaneous curvature
  • oil chain length dependence
  • bending and saddle splay constants

Status

Published

ISBN/ISSN/Other

  • ISSN: 0193-2691