Interactions among hydrophobically modified polyelectrolytes and surfactants of the same charge

Lev Bromberg, Marina Temchenko, Ralph H. Colby

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

Effects of sodium dodecyl sulfate (SDS) on surface tension and rheology of aqueous solutions of an associative polymer, poly(ethylene oxide)-b-poly(propylene oxide)-b-(poly(ethylene oxide)-g-poly(acrylic acid) (Pluronic-PAA) have been studied. SDS starts to bind to the Pluronic-PAA copolymer at a concentration that is 25-fold lower than the critical micellization concentration (CMC) of the surfactant. The data indicate predominant binding between SDS and polyether segments of Pluronic-PAA. Incorporation of SDS into the Pluronic micelles makes the polymer less surface-active, as the surface tension increases. The Pluronic-PAA chains collapse when SDS binds, because the surfactant enhances hydrophobic intramolecular associations.

Original languageEnglish (US)
Pages (from-to)2609-2614
Number of pages6
JournalLangmuir
Volume16
Issue number6
DOIs
StatePublished - Mar 21 2000

Fingerprint

Poloxamer
Sodium dodecyl sulfate
Polyelectrolytes
sodium sulfates
Surface-Active Agents
Sodium Dodecyl Sulfate
Surface active agents
surfactants
carbopol 940
ethylene oxide
Polyethylene oxides
interactions
Surface tension
Polymers
interfacial tension
Polypropylene oxides
Micellization
propylene oxide
Polyethers
polymers

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Bromberg, Lev ; Temchenko, Marina ; Colby, Ralph H. / Interactions among hydrophobically modified polyelectrolytes and surfactants of the same charge. In: Langmuir. 2000 ; Vol. 16, No. 6. pp. 2609-2614.
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Interactions among hydrophobically modified polyelectrolytes and surfactants of the same charge. / Bromberg, Lev; Temchenko, Marina; Colby, Ralph H.

In: Langmuir, Vol. 16, No. 6, 21.03.2000, p. 2609-2614.

Research output: Contribution to journalArticle

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AU - Colby, Ralph H.

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