• S. KUMAR
• R. Amalanathan
• M. Malathi
• A. Mohan
• L. Guganathan

Microwave dielectric spectra for binary mixtures of Monoethanolamine with 2-Alkoxyethanols have been determined over the frequency range of 10 MHz to 20 GHz at 303.15K using Time Domain Reflectometry technique (TDR). The complex dielectric spectra of Monoethanolamine, 2-Methoxyethanol, 2-Ethoxyethanol and 2-Butoxyethanol and their binary mixtures were measured at different concentrations. The dielectric permittivity (ε'), dielectric loss (ε") dielectric constant(𝜀o) and relaxation time (𝜏) were determined from the complex dielectric spectra of pure liquids and binary liquid mixtures by fitting the Debye model using the lest-square fitting method. The molecular interaction parameter like. Bruggeman factor (𝑓𝐵), effective Kirkwood correlation factor (𝑔eff), corrective Kirkwood correlation factor (𝑔𝑓) were calculated and interpreted accordingly. similiarly the excess dielectric constant (𝜀𝐸), excess inverse relaxation time (1/𝜏)𝐸 and thermodynamic properties like excess Helmholtz free energy (∆FE) and Free energy of activation for relaxation time (∆F𝜏) were also calculated and interpreted on the basis of nature of molecular interaction.

Time domain Reflectometry , Monoethanolamine, 2-Alkoxyethanols, Dielectric relaxation time, Bruggeman factor, Kirkwood correlation factor and Excess thermodynamic Parameters.

"Dielectric Relaxation studies of Monoethanolamine with 2-Alkoxyethanols using Time Domain Reflectometry Technique", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 11, page no.545-554, November-2018, Available :http://www.jetir.org/papers/JETIR1811477.pdf

"Dielectric Relaxation studies of Monoethanolamine with 2-Alkoxyethanols using Time Domain Reflectometry Technique", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 11, page no. pp545-554, November-2018, Available at : http://www.jetir.org/papers/JETIR1811477.pdf