Synthesis of Brominated C-18 Fatty Acids and Surfactant Properties of Their Sodium Salts

Baptist, Steven (1996) Synthesis of Brominated C-18 Fatty Acids and Surfactant Properties of Their Sodium Salts. Masters thesis, Universiti Pertanian Malaysia.

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Abstract

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.

Item Type:Thesis (Masters)
Subject:Fatty acids - Synthesis.
Subject:Sodium salts - Synthesis.
Subject:Surface active agents.
Chairman Supervisor:Associate Professor Dr. Karen Badri
Call Number:FSAS 1996 5
Faculty or Institute:Faculty of Environmental Studies
ID Code:8607
Deposited By: Nurul Hayatie Hashim
Deposited On:03 Dec 2010 04:31
Last Modified:11 Jun 2012 07:31

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