Molecular interaction analysis and relaxation findings of amphiphilics in solution state.

The interaction of stearic acid with non-polar benzene along polar co-solvent (amyl alcohol) is revealed in the present study. The dielectric nature of complex mixture examined in the frequency regime of 10 MHz to 30 GHz over a various temperature and concentration using time domain reflectometry(TDR). Dielectric parameters (static dielectric constant, dielectric loss, relaxation time, dielectric permittivity) were estimated from the obtained complex spectra. The excess dielectric values validate the molecular interaction between the solute and solvents. The obtained dielectric and relaxation parameter reveals the fluctuating electrostatic type interaction among the complex mixture. Thermal parameters are determined from the obtained relaxation time, in which the negative Gibb's free energy indicates the formation of high ordered complex. The FT-IR spectrums and their assignments confirm the molecular interaction between the mixture. [ABSTRACT FROM AUTHOR]