(286b) Synergistic Interactions Among Biosurfactants and Other Surfactants
AIChE Annual Meeting
2009 Annual Meeting
Engineering Sciences and Fundamentals
Fundamentals of Interfacial Phenomena III - Biological and Organic Molecules at Interfaces
Tuesday, November 10, 2009 - 3:38pm to 3:56pm
Due to the increasing demand for environmental friendly reagents, greener surfactants are recently receiving the warranted attention. The unique surface activity and biodegradability make this group of surfactants leading candidates as the next generation reagents. One of the unique properties of greener surfactants is the synergistic interactions between each other as well as conventional surfactants. In this work, we selected several greener surfactants, sugar based alkyl glycosides and amino acid based acyl-glutamate for exploring their potential synergism in mixtures
under different solution conditions. It is noted that synergy under various conditions of temperature, pH and salinity depends very much upon the chemical structure of the components as well as mixing ratio and even the sequence of mixing. The results are analyzed to obtain relationship between packing of surfactant species at various interfaces, solubility and resultant synergism/antagonism.