ABSTRACT

The dielectric measurements have been executed by making the use of time domain reflectometry (TDR) technique for 1-pentanol and ethanol in the pure form and for their binary liquid mixture in the frequency interim of 10 MHz–50 GHz at varying temperatures, respectively. The complex permittivity spectra studied show Debye behaviour and plotted as the function of frequency. The temperature-dependent dielectric constant and relaxation time values were estimated. The Kirkwood correlation factor (g^eff) has also been studied to determine the alignment of dipole moments in mixture. The thermodynamic parameters and temperature-dependent behaviour of relaxation time, i.e. Arrhenius plot, have been studied.

摘要

通过使用时域反射仪 (TDR) 技术对纯形式的 1-戊醇和乙醇以及它们的二元液体混合物在 10 MHz-50 GHz 的频率过渡中分别在不同温度下执行介电测量。所研究的复介电常数谱显示了德拜行为并绘制为频率的函数。估计了与温度相关的介电常数和弛豫时间值。还研究了柯克伍德相关因子 ( g ^eff ) 以确定混合物中偶极矩的排列。研究了弛豫时间的热力学参数和随温度变化的行为，即Arrhenius 图。