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Microemulsions as reaction media for synthesis of sodium decyl sulfonate II: Role of ionic surfactants
YKI – Ytkemiska institutet.
YKI – Ytkemiska institutet.
1995 (English)In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, E-ISSN 1873-4359, Vol. 104, 217-222 p.Article in journal (Refereed)
Abstract [en]

Synthesis of sodium decyl sulfonate in various types of microemulsions based on nonionic surfactants have been reported in our previous paper. As a continuation of this study the effect of ionic surfactants with different counterions on the reaction profile was investigated. As expected, the electrical potential of microemulsion droplets significantly influenced the degree of conversion probably by affecting the diffusion of ionic species into the interfacial region where the reaction occurs. The reaction yield was also highly dependent on the type of counterions. Tetradecyl trimethyl ammonium acetate increased the yield, but sodium dodecyl sulfate and tetradecyl trimethyl ammonium bromide gave decreased conversion. The counterion effect was explained by the competitive association of ions with the surfactant monolayer at the oil/water interface.

Place, publisher, year, edition, pages
1995. Vol. 104, 217-222 p.
Keyword [en]
Counterion and surface potential, Ionic surfactant, Microemulsion, Reaction equilibrium
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-26467OAI: oai:DiVA.org:ri-26467DiVA: diva2:1053469
Note
A968Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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