Dielectric Relaxation Studies of 2-Butoxyethanol with Aniline and Substituted Anilines Using Time Domain Reflectometry

[摘要] The complex dielectric spectra of 2-butoxyethanol with aniline and substituted anilines like aniline,o-chloroaniline,m-chloroaniline,o-anisidine andm-anisidine binary mixtures in the composition of different volumes of percent (0%, 25%, 50%, 75%, and 100%) have been measured as a function of frequency between 10 MHz and 30 GHz at 298.15 K. The dielectric parameters like static dielectric constantε0and relaxation timeτhave been obtained by using least square fit method. By using these parametersε0,τ, effective Kirkwood correlation factorgeff, corrective Kirkwood correlation factorgf, Bruggeman factorfB, excess dielectric constantεE, and excess inverse relaxation time1/τEvalues are calculated and discussed to yield information on the dipolar alignment and molecular rotation of the binary liquid mixtures. From all the derived dielectric parameters, molecular interactions are interpreted through hydrogen bonding.

[学科分类] 物理化学和理论化学