Adsorption and Interfacial Properties of the Cationic Gemini Surfactant of Ethanediyl-α,β-Bis(Cetyldimethylammonium Bromide)
The cationic gemini surfactant ethanediyl-α,β-bis(cetyldimethylammonium bromide (16-2-16) was synthesized and characterized. Aggregation of the surfactant molecules was established by surface tension measurements and viscosity methods. Some thermodynamic parameters, such as the adsorption capacity o...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2003-10-01
|
| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361703773581768 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841563096411275264 |
|---|---|
| author | Wen-Sheng Liao Zhi-Chu Bi |
| author_facet | Wen-Sheng Liao Zhi-Chu Bi |
| author_sort | Wen-Sheng Liao |
| collection | DOAJ |
| description | The cationic gemini surfactant ethanediyl-α,β-bis(cetyldimethylammonium bromide (16-2-16) was synthesized and characterized. Aggregation of the surfactant molecules was established by surface tension measurements and viscosity methods. Some thermodynamic parameters, such as the adsorption capacity of the surface, the molecular area associated with adsorption and the free energy of micellization, were calculated from plots of the surface tension versus the concentration. The dynamic surface and interfacial tensions were measured using the pendant drop method at the air/water surface and the dodecane/water interface. The experimental curve was close to the orientation and interaction models of the surface equations of state. In comparison to conventional cationic surfactants, 16-2-16 has a very low critical micellar concentration (cmc), a higher level of surface adsorption and a lower adsorption molecular area. Due to its unique molecular structure and size, 16-2-16 adsorbs at surfaces and interfaces, but requires a considerable amount of time to attain adsorption equilibrium. |
| format | Article |
| id | doaj-art-687a3f2e6cf1439eb3322d750edc7f6e |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2003-10-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-687a3f2e6cf1439eb3322d750edc7f6e2025-01-03T00:11:56ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382003-10-012110.1260/026361703773581768Adsorption and Interfacial Properties of the Cationic Gemini Surfactant of Ethanediyl-α,β-Bis(Cetyldimethylammonium Bromide)Wen-Sheng LiaoZhi-Chu BiThe cationic gemini surfactant ethanediyl-α,β-bis(cetyldimethylammonium bromide (16-2-16) was synthesized and characterized. Aggregation of the surfactant molecules was established by surface tension measurements and viscosity methods. Some thermodynamic parameters, such as the adsorption capacity of the surface, the molecular area associated with adsorption and the free energy of micellization, were calculated from plots of the surface tension versus the concentration. The dynamic surface and interfacial tensions were measured using the pendant drop method at the air/water surface and the dodecane/water interface. The experimental curve was close to the orientation and interaction models of the surface equations of state. In comparison to conventional cationic surfactants, 16-2-16 has a very low critical micellar concentration (cmc), a higher level of surface adsorption and a lower adsorption molecular area. Due to its unique molecular structure and size, 16-2-16 adsorbs at surfaces and interfaces, but requires a considerable amount of time to attain adsorption equilibrium.https://doi.org/10.1260/026361703773581768 |
| spellingShingle | Wen-Sheng Liao Zhi-Chu Bi Adsorption and Interfacial Properties of the Cationic Gemini Surfactant of Ethanediyl-α,β-Bis(Cetyldimethylammonium Bromide) Adsorption Science & Technology |
| title | Adsorption and Interfacial Properties of the Cationic Gemini Surfactant of Ethanediyl-α,β-Bis(Cetyldimethylammonium Bromide) |
| title_full | Adsorption and Interfacial Properties of the Cationic Gemini Surfactant of Ethanediyl-α,β-Bis(Cetyldimethylammonium Bromide) |
| title_fullStr | Adsorption and Interfacial Properties of the Cationic Gemini Surfactant of Ethanediyl-α,β-Bis(Cetyldimethylammonium Bromide) |
| title_full_unstemmed | Adsorption and Interfacial Properties of the Cationic Gemini Surfactant of Ethanediyl-α,β-Bis(Cetyldimethylammonium Bromide) |
| title_short | Adsorption and Interfacial Properties of the Cationic Gemini Surfactant of Ethanediyl-α,β-Bis(Cetyldimethylammonium Bromide) |
| title_sort | adsorption and interfacial properties of the cationic gemini surfactant of ethanediyl α β bis cetyldimethylammonium bromide |
| url | https://doi.org/10.1260/026361703773581768 |
| work_keys_str_mv | AT wenshengliao adsorptionandinterfacialpropertiesofthecationicgeminisurfactantofethanediylabbiscetyldimethylammoniumbromide AT zhichubi adsorptionandinterfacialpropertiesofthecationicgeminisurfactantofethanediylabbiscetyldimethylammoniumbromide |