单、二和三丙二醇中的玻璃态动力学:从α弛豫到快速β弛豫
Glassy dynamics in mono-, di-, and tri-propylene glycol: From the alpha- to the fast beta-relaxation
摘要:
我们提出了一个彻底的表征三个丙二醇(单,二,三聚体)的玻璃态动力学的宽带介电谱。通过覆盖超过15个十年的频率范围,我们可以获得玻璃态动力学典型的各种动态过程。这些结果增加了三个以上的分子玻璃形成者的材料,其中真正的宽带光谱,包括快速β-过程的区域,是可用的稀疏列表。一些第一次分析的各种观察到的动态过程。
英文摘要:
We present a thorough characterization of the glassy dynamics of three propylene glycols (mono-, di- and trimer) by broadband dielectric spectroscopy. By covering a frequency range of more than 15 decades, we have access to the entire variety of dynamic processes typical for glassy dynamics. These results add three more molecular glass formers to the sparse list of materials for which real broadband spectra, including the region of the fast beta-process, are available. Some first analyses of the various observed dynamic processes are provided.
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