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The Impact of Micelle Formation on Surfactant Adsorption–Desorption
[Image: see text] The monomer–micelle equilibrium is shown to be responsible for an asymmetry between surfactant adsorption and desorption rates. When a solution containing micelles is brought into contact with a solid surface, the micelles dissociate to supply monomers that adsorb to the surface. W...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7841946/ https://www.ncbi.nlm.nih.gov/pubmed/33521464 http://dx.doi.org/10.1021/acsomega.0c05532 |
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author | Groenendijk, Dirk J. van Wunnik, Johannes N. M. |
author_facet | Groenendijk, Dirk J. van Wunnik, Johannes N. M. |
author_sort | Groenendijk, Dirk J. |
collection | PubMed |
description | [Image: see text] The monomer–micelle equilibrium is shown to be responsible for an asymmetry between surfactant adsorption and desorption rates. When a solution containing micelles is brought into contact with a solid surface, the micelles dissociate to supply monomers that adsorb to the surface. When the same surface is subsequently exposed to a surfactant-free solution, desorption occurs slowly because of the higher affinity of the monomers to remain to the surface than to form micelles. As a result, the number of monomers that desorb is limited by the critical micelle concentration (CMC) of the surfactant. This effect is particularly pronounced for surfactants with low CMC values and in systems with high surface-to-volume ratios, such as porous media. A generic model is developed and applied to simulate the Ca(2+)-mediated adsorption and desorption of surfactants in limestone cores. |
format | Online Article Text |
id | pubmed-7841946 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-78419462021-01-29 The Impact of Micelle Formation on Surfactant Adsorption–Desorption Groenendijk, Dirk J. van Wunnik, Johannes N. M. ACS Omega [Image: see text] The monomer–micelle equilibrium is shown to be responsible for an asymmetry between surfactant adsorption and desorption rates. When a solution containing micelles is brought into contact with a solid surface, the micelles dissociate to supply monomers that adsorb to the surface. When the same surface is subsequently exposed to a surfactant-free solution, desorption occurs slowly because of the higher affinity of the monomers to remain to the surface than to form micelles. As a result, the number of monomers that desorb is limited by the critical micelle concentration (CMC) of the surfactant. This effect is particularly pronounced for surfactants with low CMC values and in systems with high surface-to-volume ratios, such as porous media. A generic model is developed and applied to simulate the Ca(2+)-mediated adsorption and desorption of surfactants in limestone cores. American Chemical Society 2021-01-11 /pmc/articles/PMC7841946/ /pubmed/33521464 http://dx.doi.org/10.1021/acsomega.0c05532 Text en © 2021 The Authors. Published by American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
spellingShingle | Groenendijk, Dirk J. van Wunnik, Johannes N. M. The Impact of Micelle Formation on Surfactant Adsorption–Desorption |
title | The Impact of Micelle Formation on Surfactant Adsorption–Desorption |
title_full | The Impact of Micelle Formation on Surfactant Adsorption–Desorption |
title_fullStr | The Impact of Micelle Formation on Surfactant Adsorption–Desorption |
title_full_unstemmed | The Impact of Micelle Formation on Surfactant Adsorption–Desorption |
title_short | The Impact of Micelle Formation on Surfactant Adsorption–Desorption |
title_sort | impact of micelle formation on surfactant adsorption–desorption |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7841946/ https://www.ncbi.nlm.nih.gov/pubmed/33521464 http://dx.doi.org/10.1021/acsomega.0c05532 |
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