SANS study of polymer-containing microemulsions

Shahidan Radiman, L. E. Fountain, C. Toprakcioglu, A. de Vallera, P. Chieux

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The water soluble polymer polyethylene oxide (PEO) was introduced into dilute water-in-oil microemulsions stabilised by the surfactant Aerosol-OT (AOT). Since PEO is insoluble in the oil (n-heptane), the polymer is confined within the aqueous microphase. The phase stability of the resulting microemulsions is significantly affected by the concentration and molecular weight of the polymer. At fixed mass concentration of the polymer relative to the aqueous phase, any structural or phase behaviour changes as a function of molecular weight are primarily entropic. We have used small angle neutron scattering (SANS) and conductivity measurements to show that the polymer (PEO) can induce droplet aggregation, with increased polydispersity at higher volume fractions of the aqueous microphase, and critical-like scattering on approaching the upper-temperature phase boundary.

Original languageEnglish
Pages (from-to)54-59
Number of pages6
JournalProgress in Colloid and Polymer Science
Volume81
Publication statusPublished - 1990
Externally publishedYes

Fingerprint

Microemulsions
Neutron scattering
Polymers
neutron scattering
Polyethylene oxides
polymers
polyethylenes
oxides
molecular weight
Oils
oils
Dioctyl Sulfosuccinic Acid
Molecular weight
Phase stability
Water
Polydispersity
Heptane
Phase boundaries
Phase behavior
heptanes

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Chemistry (miscellaneous)
  • Physical and Theoretical Chemistry
  • Polymers and Plastics

Cite this

Radiman, S., Fountain, L. E., Toprakcioglu, C., de Vallera, A., & Chieux, P. (1990). SANS study of polymer-containing microemulsions. Progress in Colloid and Polymer Science, 81, 54-59.

SANS study of polymer-containing microemulsions. / Radiman, Shahidan; Fountain, L. E.; Toprakcioglu, C.; de Vallera, A.; Chieux, P.

In: Progress in Colloid and Polymer Science, Vol. 81, 1990, p. 54-59.

Research output: Contribution to journalArticle

Radiman, S, Fountain, LE, Toprakcioglu, C, de Vallera, A & Chieux, P 1990, 'SANS study of polymer-containing microemulsions', Progress in Colloid and Polymer Science, vol. 81, pp. 54-59.
Radiman S, Fountain LE, Toprakcioglu C, de Vallera A, Chieux P. SANS study of polymer-containing microemulsions. Progress in Colloid and Polymer Science. 1990;81:54-59.
Radiman, Shahidan ; Fountain, L. E. ; Toprakcioglu, C. ; de Vallera, A. ; Chieux, P. / SANS study of polymer-containing microemulsions. In: Progress in Colloid and Polymer Science. 1990 ; Vol. 81. pp. 54-59.
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