Synthesis of Brominated C-18 Fatty Acids and Surfactant Properties of Their Sodium Salts
The physicochemical properties of sodium salts fatty acid have not been thoroughly investigated and are, therefore, not well understood In line with this, brominated and non-brominated sodium salts of C-18 chain fatty acids were prepared and their physicochmical properties and performance in aque...
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| Format: | Thesis |
| Language: | en English |
| Published: |
1996
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| Online Access: | http://psasir.upm.edu.my/id/eprint/8607/1/FSAS_1996_5_A.pdf http://psasir.upm.edu.my/id/eprint/8607/ |
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| _version_ | 1832511790927314944 |
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| author | Baptist, Steven |
| author_facet | Baptist, Steven |
| author_sort | Baptist, Steven |
| building | UPM Library |
| collection | Institutional Repository |
| content_provider | Universiti Putra Malaysia |
| content_source | UPM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | The physicochemical properties of sodium salts fatty acid have not been
thoroughly investigated and are, therefore, not well understood In line with this,
brominated and non-brominated sodium salts of C-18 chain fatty acids were prepared
and their physicochmical properties and performance in aqueous solution have been
investigated by means of surface tension, conductivity, NMR(¹H and ¹³C) and
emulsion stability
The experimental results indicate that when bromine atom/s were present in
the alkyl chain of the fatty acid sodium salts, the surface activity increases. It was also
found that closely packed micelles were formed with the introduction of the bromine
atom/s onto the hydrophobic region of the surfactant, thus a lower critical micelle
concentration was registered. However, the presence of bromine did not affect the
formation of stable w/o emulsions. |
| format | Thesis |
| id | my.upm.eprints-8607 |
| institution | Universiti Putra Malaysia |
| language | en English |
| publishDate | 1996 |
| record_format | eprints |
| spelling | my.upm.eprints-86072012-06-11T07:31:03Z http://psasir.upm.edu.my/id/eprint/8607/ Synthesis of Brominated C-18 Fatty Acids and Surfactant Properties of Their Sodium Salts Baptist, Steven The physicochemical properties of sodium salts fatty acid have not been thoroughly investigated and are, therefore, not well understood In line with this, brominated and non-brominated sodium salts of C-18 chain fatty acids were prepared and their physicochmical properties and performance in aqueous solution have been investigated by means of surface tension, conductivity, NMR(¹H and ¹³C) and emulsion stability The experimental results indicate that when bromine atom/s were present in the alkyl chain of the fatty acid sodium salts, the surface activity increases. It was also found that closely packed micelles were formed with the introduction of the bromine atom/s onto the hydrophobic region of the surfactant, thus a lower critical micelle concentration was registered. However, the presence of bromine did not affect the formation of stable w/o emulsions. 1996 Thesis NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/8607/1/FSAS_1996_5_A.pdf Baptist, Steven (1996) Synthesis of Brominated C-18 Fatty Acids and Surfactant Properties of Their Sodium Salts. Masters thesis, Universiti Pertanian Malaysia. Fatty acids - Synthesis. Sodium salts - Synthesis. Surface active agents. English |
| spellingShingle | Fatty acids - Synthesis. Sodium salts - Synthesis. Surface active agents. Baptist, Steven Synthesis of Brominated C-18 Fatty Acids and Surfactant Properties of Their Sodium Salts |
| title | Synthesis of Brominated C-18 Fatty Acids and Surfactant Properties of Their Sodium Salts |
| title_full | Synthesis of Brominated C-18 Fatty Acids and Surfactant Properties of Their Sodium Salts |
| title_fullStr | Synthesis of Brominated C-18 Fatty Acids and Surfactant Properties of Their Sodium Salts |
| title_full_unstemmed | Synthesis of Brominated C-18 Fatty Acids and Surfactant Properties of Their Sodium Salts |
| title_short | Synthesis of Brominated C-18 Fatty Acids and Surfactant Properties of Their Sodium Salts |
| title_sort | synthesis of brominated c-18 fatty acids and surfactant properties of their sodium salts |
| topic | Fatty acids - Synthesis. Sodium salts - Synthesis. Surface active agents. |
| url | http://psasir.upm.edu.my/id/eprint/8607/1/FSAS_1996_5_A.pdf http://psasir.upm.edu.my/id/eprint/8607/ |
| url_provider | http://psasir.upm.edu.my/ |