Straining flow of a micellar surfactant solution
We present a mathematical model describing the distribution of monomer and micellar surfactant in a steady straining flow beneath a fixed free surface. The model includes adsorption of monomer surfactant at the surface and a single-step reaction whereby n monomer molecules combine to form each micel...
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| Format: | Journal article |
| Language: | English |
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2004
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| _version_ | 1797067466870882304 |
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| author | Breward, C Howell, P |
| author_facet | Breward, C Howell, P |
| author_sort | Breward, C |
| collection | OXFORD |
| description | We present a mathematical model describing the distribution of monomer and micellar surfactant in a steady straining flow beneath a fixed free surface. The model includes adsorption of monomer surfactant at the surface and a single-step reaction whereby n monomer molecules combine to form each micelle. The equations are analysed asymptotically and numerically and the results are compared with experiments. Previous studies of such systems have often assumed equilibrium between the monomer and micellar phases, i.e. that the reaction rate is effectively infinite. Our analysis shows that such an approach inevitably fails under certain physical conditions and also cannot accurately match some experimental results. Our theory provides an improved fit with experiments and allows the reaction rates to be estimated. © 2004 Cambridge University Press. |
| first_indexed | 2024-03-06T21:56:41Z |
| format | Journal article |
| id | oxford-uuid:4d27b121-7683-4792-b759-a06a496ed670 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:56:41Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:4d27b121-7683-4792-b759-a06a496ed6702022-03-26T15:53:46ZStraining flow of a micellar surfactant solutionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4d27b121-7683-4792-b759-a06a496ed670EnglishSymplectic Elements at Oxford2004Breward, CHowell, PWe present a mathematical model describing the distribution of monomer and micellar surfactant in a steady straining flow beneath a fixed free surface. The model includes adsorption of monomer surfactant at the surface and a single-step reaction whereby n monomer molecules combine to form each micelle. The equations are analysed asymptotically and numerically and the results are compared with experiments. Previous studies of such systems have often assumed equilibrium between the monomer and micellar phases, i.e. that the reaction rate is effectively infinite. Our analysis shows that such an approach inevitably fails under certain physical conditions and also cannot accurately match some experimental results. Our theory provides an improved fit with experiments and allows the reaction rates to be estimated. © 2004 Cambridge University Press. |
| spellingShingle | Breward, C Howell, P Straining flow of a micellar surfactant solution |
| title | Straining flow of a micellar surfactant solution |
| title_full | Straining flow of a micellar surfactant solution |
| title_fullStr | Straining flow of a micellar surfactant solution |
| title_full_unstemmed | Straining flow of a micellar surfactant solution |
| title_short | Straining flow of a micellar surfactant solution |
| title_sort | straining flow of a micellar surfactant solution |
| work_keys_str_mv | AT brewardc strainingflowofamicellarsurfactantsolution AT howellp strainingflowofamicellarsurfactantsolution |