Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface
The dynamic adsorption of cetyl trimethyl ammonium bromide (CTAB) was investigated at decane/waterinterface by pendant drop technique. The images were analysed using Axisymmetric Drop Shape Analysissoftware and then were modelled using a new model. The model provided a unique solution for equilib-ri...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Elsevier B.V.
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/30618 |
| _version_ | 1848753139416563712 |
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| author | Salamah, A. Phan, Chi Pham, H. |
| author_facet | Salamah, A. Phan, Chi Pham, H. |
| author_sort | Salamah, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The dynamic adsorption of cetyl trimethyl ammonium bromide (CTAB) was investigated at decane/waterinterface by pendant drop technique. The images were analysed using Axisymmetric Drop Shape Analysissoftware and then were modelled using a new model. The model provided a unique solution for equilib-rium adsorption. Consequently, dynamic data at two different concentrations were fitted simultaneouslyto determine the adsorption parameters. Good fittings have been achieved and then applied to predictdynamic tension at other concentrations. The outcomes revealed a significant increment in term of inter-facial adsorption in comparison with adsorption at the air/water interface. The nature of this increment can be explained by considering the impacts of hydrophobic oil molecules and interfacial layer arrange-ments of alkane/water interfaces. The results can be used to quantify the interaction between alkane and the hydrocarbon tail of ionic surfactants at the oil/water interface. |
| first_indexed | 2025-11-14T08:19:46Z |
| format | Journal Article |
| id | curtin-20.500.11937-30618 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:19:46Z |
| publishDate | 2015 |
| publisher | Elsevier B.V. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-306182019-05-23T06:27:59Z Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface Salamah, A. Phan, Chi Pham, H. The dynamic adsorption of cetyl trimethyl ammonium bromide (CTAB) was investigated at decane/waterinterface by pendant drop technique. The images were analysed using Axisymmetric Drop Shape Analysissoftware and then were modelled using a new model. The model provided a unique solution for equilib-rium adsorption. Consequently, dynamic data at two different concentrations were fitted simultaneouslyto determine the adsorption parameters. Good fittings have been achieved and then applied to predictdynamic tension at other concentrations. The outcomes revealed a significant increment in term of inter-facial adsorption in comparison with adsorption at the air/water interface. The nature of this increment can be explained by considering the impacts of hydrophobic oil molecules and interfacial layer arrange-ments of alkane/water interfaces. The results can be used to quantify the interaction between alkane and the hydrocarbon tail of ionic surfactants at the oil/water interface. 2015 Journal Article http://hdl.handle.net/20.500.11937/30618 10.1016/j.colsurfa.2015.08.010 Elsevier B.V. restricted |
| spellingShingle | Salamah, A. Phan, Chi Pham, H. Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface |
| title | Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface |
| title_full | Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface |
| title_fullStr | Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface |
| title_full_unstemmed | Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface |
| title_short | Dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface |
| title_sort | dynamic adsorption of cetyl trimethyl ammonium bromide at decane/water interface |
| url | http://hdl.handle.net/20.500.11937/30618 |