In this study, the complexes synthesized by reactions
of oleic acid separately with ethylenediamine and
triethylenetetramine were reacted with different moles of
propylene oxide to form propoxylated compounds. The obtained
propoxylated compounds were characterized by a
number of physico-chemical methods. The physical properties
of the synthesized surfactants including interfacial tension
and critical micelle concentration were determined.
From thesemeasurements, themaximum surface excess concentration
and the minimum area per molecule at the water
solution/ kerosene interface and the standard thermodynamic
parameters of adsorption and micellization were calculated.
Petroleum-collecting and dispersing properties of the synthesized
propoxylated complexes in diluted and undiluted form
inwaters of varying salinity have been studied. FTIR spectra,
C13 and H1-NMR spectra confirm these complex structures. |
