Study of solute-solvent interaction through dielectrics properties of N,N-dimethylacetamide in ethanolamine

The excess permittivity values are found to be positive at all temperatures and concentrations indicate information of monomeric or polymeric structures which increases the total number of dipoles in the system. The excess inverse relaxation time (1/τ)E are found to be negative for all temperatures under study indicates that dipoles rotate slowly in the mixtures due to formation of more multimers. The values of the Kirkwood factor (g) indicates that the parallel alignment of dipoles tends to reduced with the rise in temperature and with increase in volume fraction of DMA in the solution. The plots for fB are deviated from ideal value which shows the existence of intermolecular interaction between DMA and ETA.