正丁醇与乙酸分子性质的介电研究
Molecular Properties of Butan-1-ol With Acetic Acid: A Dielectric study
摘要：
本文用时域反射光谱法研究了丁醇与乙酸混合物在不同温度（288 K、298 K、308 K和318 K）和11种不同浓度下的介电性质。介电参数，如静态介电常数和弛豫时间已被确定。利用这些介电参数估算了体系的超额介电常数、超额逆弛豫时间、Kirkwood相关因子和热力学参数（ΔH和ΔS）。丁醇与乙酸混合物的分子结构发生了剧烈的变化，这是由于复杂体系中分子间存在强烈的分子间缔合。探讨了不同温度下混合物分子结构变化的热力学参数。
英文摘要：
The dielectric properties of Butan-1-ol with acetic acid mixture have been studied in the frequency range 10 MHz to 20 GHz using time domain spectroscopy in the reflection mode, at various temperatures (i.e. on 288 K, 298 K, 308 K and 318 K) and at eleven different concentrations. Dielectric parameters such as static dielectric constant and relaxation time have been determined. Excess dielectric constant, Excess inverse relaxation time, Kirkwood correlation factor and the thermodynamic parameters (ΔH & ΔS) have been estimated using these dielectric parameters. A drastic change in molecular structure of Butan-1-ol with acetic acid mixture observed due to strong intermolecular association among the molecules of complex sysytem. Thermodynamic parameters explored to insight molecular structures changes of mixtures at different temperatures.
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