The commercialization of explosives in emulsions, including the ANFO dynamite, caused a significant increase in global consumption between 1960 and 1980, due to an increase in transportation and manufacture safety. The surfactants used in these emulsions are esters, amides or imides, derived from polyisobutylene with succinic anhydride terminal groups (PIBSA). In this work, surfactants derived from the reaction of PIBSA with polyoxyethylenodiamines were synthesized and characterized by infrared spectrometry and by Gel Permeation Chromatography. The synthesized surfactants have been evaluated as to the effect of its structures in reducing the interfacial tension of water in oil emulsions and all were able to reduce the interfacial tension of this system.
Surfactants; polyoxyethylenodiamines; water in oil system; interfacial tension; stability
