Preferential wetting of oligomeric ethylene glycol/propylene glycol blends on solid surfaces

E. C. Muniz, M. C. Pellegrini, Suzana Nunes*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The phase separation of oligomeric ethylene glycol/propylene glycol systems was investigated by light scattering in the presence of a solid surface. Beside the spinodal decomposition in the bulk of the system, a wetting transition was observed when phase separation occurred at conditions near the maxima of these phase diagrams. The transition was detected as a light scattering halo, which is more intense at a composition which does not coincide with the critical one. This composition does not depend on the surface but the halo intensity is higher when glass is used instead of PVC.

Original languageEnglish (US)
Pages (from-to)110-114
Number of pages5
JournalActa Polymerica
Volume45
Issue number2
DOIs
StatePublished - Jan 1 1994

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics

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