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: | English English |
| Published: |
1996
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/8607/1/FSAS_1996_5_A.pdf |
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| Summary: | 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. |
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