Porous media flow of poly(ethylene oxide)/sodium dodecyl sulfate mixtures

C. M. DaRocha, L. G. Patruyo, N. E. Ramírez, A. J. Müller, Avelino E Saez

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

In this work, the porous media flow of solutions of mixtures of Poly(ethylene oxide), PEO, and Sodium Dodecyl Sulfate, SDS, was studied. Aqueous solutions of PEO exhibited the well known critical extension thickening effect when flowing through disordered packings of glass spheres. Upon addition of SDS to a solution of fixed PEO concentration, the extension thickening of the mixture exhibits a maximum as a function of SDS concentration that mimics the shear viscosity behavior of the polymer-surfactant mixture. However, when NaCl is added to the mixture, higher extension thickening effects at relatively low SDS concentrations were detected, in spite of the fact that the shear viscosity of the mixtures was about the same as that of equivalent PEO/SDS solutions in deionized water. The results were rationalized in terms of how the formation of SDS micellar aggregates along the PEO chain can alter the ability of the polymer to form transient entanglement networks, which is the cause of the extension thickening behavior.

Original languageEnglish (US)
Pages (from-to)109-116
Number of pages8
JournalPolymer Bulletin
Volume42
Issue number1
StatePublished - 1999

Fingerprint

Sodium dodecyl sulfate
ethylene oxide
Polyethylene oxides
sodium sulfates
Sodium Dodecyl Sulfate
Porous materials
Shear viscosity
viscosity
Polymers
shear
polymers
Deionized water
Surface-Active Agents
surfactants
aqueous solutions
Surface active agents
glass
causes
Glass
water

Keywords

  • Poly(ethylene oxide)
  • Polymer/Surfactant Mixtures
  • Porous media flow
  • Sodium Dodecyl Sulfate
  • Transient networks

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

Cite this

DaRocha, C. M., Patruyo, L. G., Ramírez, N. E., Müller, A. J., & Saez, A. E. (1999). Porous media flow of poly(ethylene oxide)/sodium dodecyl sulfate mixtures. Polymer Bulletin, 42(1), 109-116.

Porous media flow of poly(ethylene oxide)/sodium dodecyl sulfate mixtures. / DaRocha, C. M.; Patruyo, L. G.; Ramírez, N. E.; Müller, A. J.; Saez, Avelino E.

In: Polymer Bulletin, Vol. 42, No. 1, 1999, p. 109-116.

Research output: Contribution to journalArticle

DaRocha, CM, Patruyo, LG, Ramírez, NE, Müller, AJ & Saez, AE 1999, 'Porous media flow of poly(ethylene oxide)/sodium dodecyl sulfate mixtures', Polymer Bulletin, vol. 42, no. 1, pp. 109-116.
DaRocha CM, Patruyo LG, Ramírez NE, Müller AJ, Saez AE. Porous media flow of poly(ethylene oxide)/sodium dodecyl sulfate mixtures. Polymer Bulletin. 1999;42(1):109-116.
DaRocha, C. M. ; Patruyo, L. G. ; Ramírez, N. E. ; Müller, A. J. ; Saez, Avelino E. / Porous media flow of poly(ethylene oxide)/sodium dodecyl sulfate mixtures. In: Polymer Bulletin. 1999 ; Vol. 42, No. 1. pp. 109-116.
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