Charging of latex particles stabilized by sulfate surfactant

J. Sefcik, M. Verduyn, G. Storti, M. Morbidelli

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Surface charging of polystyrene latex particles stabilized with sodium dodecyl sulfate (SDS) was investigated. The surfactant adsorption isotherm and electrophoretic mobilities of monodisperse latex particles were measured. Electrophoretic mobility measurements at moderate ionic strengths (around 0.1 M) indicated a substantial degree of counterion binding to adsorbed dodecyl sulfate anions, comparable to that found in SDS micelles. We offer a consistent description of surface charging of SDS-stabilized latex particles and SDS micelles taking into account binding of sodium counterions to dodecyl sulfate anions.
Original languageEnglish
Pages (from-to)4778-4783
Number of pages5
JournalLangmuir
Volume19
DOIs
Publication statusPublished - 2003

Fingerprint

Latex
Sodium dodecyl sulfate
latex
sodium sulfates
Latexes
Surface-Active Agents
Sodium Dodecyl Sulfate
Particles (particulate matter)
Sulfates
charging
sulfates
Surface active agents
surfactants
Electrophoretic mobility
Micelles
Anions
micelles
Negative ions
anions
Ionic strength

Keywords

  • chemical engineering
  • latex
  • chemistry
  • surface charging

Cite this

Sefcik, J. ; Verduyn, M. ; Storti, G. ; Morbidelli, M. / Charging of latex particles stabilized by sulfate surfactant. In: Langmuir. 2003 ; Vol. 19. pp. 4778-4783.
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Charging of latex particles stabilized by sulfate surfactant. / Sefcik, J.; Verduyn, M.; Storti, G.; Morbidelli, M.

In: Langmuir, Vol. 19, 2003, p. 4778-4783.

Research output: Contribution to journalArticle

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T1 - Charging of latex particles stabilized by sulfate surfactant

AU - Sefcik, J.

AU - Verduyn, M.

AU - Storti, G.

AU - Morbidelli, M.

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AB - Surface charging of polystyrene latex particles stabilized with sodium dodecyl sulfate (SDS) was investigated. The surfactant adsorption isotherm and electrophoretic mobilities of monodisperse latex particles were measured. Electrophoretic mobility measurements at moderate ionic strengths (around 0.1 M) indicated a substantial degree of counterion binding to adsorbed dodecyl sulfate anions, comparable to that found in SDS micelles. We offer a consistent description of surface charging of SDS-stabilized latex particles and SDS micelles taking into account binding of sodium counterions to dodecyl sulfate anions.

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KW - chemistry

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