Synthesis of fatty acid glyceride sulfonate

After transesterification of alpha-sulfonated fatty acid methyl ester with glycerol and followed by neutralization with sodium hydroxide solution,sodium fatty acid glyceride sulfonate was prepared.Operating conditions of the transesterification reaction are to use carbon tetrachloride as solvent,at 75 ℃ for 4 h,with mole ratio n(alpha-sulfonated fatty acid methyl ester)∶n(glycerol)=1∶5.Under these conditions,the conversion of alpha-sulfonated fatty acid methyl ester is identified as 66.33% by HPLC analysis.The structure of fatty acid glyceride sulfonate was confirmed by IR and MS spectra.Results showed that besides fatty acid monoglyceride sulfonate,the product also contains fatty acid methyl ester sulfonate and fatty acid diglyceride sulfonate.