Impedance spectroscopy investigation of the water-in-oil microemulsions formation

In this work it was investigated the microemulsion formation using impedance spectroscopy analysis. The results indicated that the microemulsion formation is clearly observed on the impedance complex plane. The phase transition related with microemulsion formation is characterized by a time relaxation distribution. In the condition of the microemulsion formation, the impedance spectra are characterized by a single relaxation time.

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► The aim of this work was to investigate the microemulsion formation using the immitance spectroscopy (impedance and electrical modulus spectroscopies).
► This technique was able to detect the microemulsion formation, which was associated to the distribution of the time in the dielectric relaxational process that occurs in the radiofrequency range of the frequency.
► The point at which the microemulsion is achieved was confirmed using potential zeta measurements.