Detection of micellar structures in oil-water-surfactant systems with a photoacoustic method
Model studies were performed with a layered system consisting of thin olive oil layers (25-250 μm in thickness) spread over the water surface using a photoacoustic method. Significant variations in the signal phase and amplitude found out at the interfaces (air/oil and oil/water) as well as at a dep...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2014-09-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1105 |
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| author | S. J. POGORZELSKI J. SZURKOWSKI A. ŚLIWIŃSKI |
| author_facet | S. J. POGORZELSKI J. SZURKOWSKI A. ŚLIWIŃSKI |
| author_sort | S. J. POGORZELSKI |
| collection | DOAJ |
| description | Model studies were performed with a layered system consisting of thin olive oil layers (25-250 μm in thickness) spread over the water surface using a photoacoustic method. Significant variations in the signal phase and amplitude found out at the interfaces (air/oil and oil/water) as well as at a depth of 9-13 μm beneath the oil surface point to the formation of organized clathrate molecular structures under the film-covered surfaces and micellar structures of surfactants if present in a bulk oil phase at an appropriate concentration (above CMC) and temperature (Krafft point). Such organized structures have different thermodynamic properties (like specific heat or thermal diffusivity, discussed in terms of classical thermodynamics of thin surface layers) that is supposed to affect the photoacoustic effect used for depth profiling. |
| format | Article |
| id | doaj-art-98dcbd29a556473c898407122d34765c |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2014-09-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-98dcbd29a556473c898407122d34765c2025-08-20T03:25:27ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2014-09-01243Detection of micellar structures in oil-water-surfactant systems with a photoacoustic methodS. J. POGORZELSKI0J. SZURKOWSKI1A. ŚLIWIŃSKI2Institute of Experimental Physics, University of GdańskInstitute of Experimental Physics, University of GdańskInstitute of Experimental Physics, University of GdańskModel studies were performed with a layered system consisting of thin olive oil layers (25-250 μm in thickness) spread over the water surface using a photoacoustic method. Significant variations in the signal phase and amplitude found out at the interfaces (air/oil and oil/water) as well as at a depth of 9-13 μm beneath the oil surface point to the formation of organized clathrate molecular structures under the film-covered surfaces and micellar structures of surfactants if present in a bulk oil phase at an appropriate concentration (above CMC) and temperature (Krafft point). Such organized structures have different thermodynamic properties (like specific heat or thermal diffusivity, discussed in terms of classical thermodynamics of thin surface layers) that is supposed to affect the photoacoustic effect used for depth profiling.https://acoustics.ippt.pan.pl/index.php/aa/article/view/1105 |
| spellingShingle | S. J. POGORZELSKI J. SZURKOWSKI A. ŚLIWIŃSKI Detection of micellar structures in oil-water-surfactant systems with a photoacoustic method Archives of Acoustics |
| title | Detection of micellar structures in oil-water-surfactant systems with a photoacoustic method |
| title_full | Detection of micellar structures in oil-water-surfactant systems with a photoacoustic method |
| title_fullStr | Detection of micellar structures in oil-water-surfactant systems with a photoacoustic method |
| title_full_unstemmed | Detection of micellar structures in oil-water-surfactant systems with a photoacoustic method |
| title_short | Detection of micellar structures in oil-water-surfactant systems with a photoacoustic method |
| title_sort | detection of micellar structures in oil water surfactant systems with a photoacoustic method |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1105 |
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