RHEOLOGY ENHANCEMENT BY MOLECULAR ASSOCIATION COMPLEXES.

Robert K. Prud'homme, Jonathan T. Uhl

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Associations between polyethylene oxide polymer (PEO) chains and species containing sulfate groups can be used to increase the viscosity and elasticity of polymer solutions. The condensation of sodium dodecyl sulfate (SDS) micelles onto the PEO chain is shown to lead first to chain coil collapse and then to network or gel structure formation as SDS concentration is increased. Stronger interactions are produced between PEO and either Congo-red dye (a large organic molecule with two widely spaced sulfate groups) or polystyrene sulfonate (PSS). In these cases the association complexes lead to minor changes in the solution viscosity but large changes in the primary normal stress and storage modulus G prime at low frequencies.

Original languageEnglish (US)
Pages (from-to)431-434
Number of pages4
JournalSociety of Petroleum Engineers journal
Volume24
Issue number4
DOIs
StatePublished - Jan 1 1984

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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