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首页> 外文期刊>Journal of Physical Organic Chemistry >How broad band (from radio frequency to microwaves) dielectric parameters describe synthetic chemical reactions
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How broad band (from radio frequency to microwaves) dielectric parameters describe synthetic chemical reactions

机译：宽带（从射频到微波）介电参数如何描述合成化学反应

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摘要

Large differences in the dielectric responses of isolated molecules and associated reactive mixtures are observed over a wide frequency spectrum ranging from low to microwave frequencies. We present the results obtained for the curing (cross-linking) of a resin mixed with a hardener. Electrical dipoles contribute to orientation polarization whose responses lie in the 1 kHz to over 1 GHz frequency range, which is predominantly higher than the 0.1 Hz-10 kHz range in which ionic conductivity is observed. It is the relaxation frequency of the reactive mixture that will be considered as the reaction marker. We also describe the results obtained with the saponification of an ester in the presence of a catalyst, with the reactive mixture containing - as in the previous case - electric dipoles and ions, but with responses superimposed in the 1 MHz-10 GHz frequency band. In this case, and for simplification reasons, the low frequency band ionic conductivity is the reaction marker. The aim of this paper is to translate synthetic chemical reactions into electronic terms, in order to allow electronics engineers to understand the interaction between electromagnetic waves and materials. Copyright (C) 2008 John Wiley & Sons, Ltd.
机译：在从低频到微波频率的宽频谱范围内，观察到分离的分子和相关的反应混合物的介电响应差异很大。我们介绍了与固化剂混合的树脂的固化（交联）结果。电偶极有助于定向极化，其响应在1 kHz至1 GHz以上的频率范围内，该频率范围主要高于观察到离子电导率的0.1 Hz-10 kHz范围。反应混合物的弛豫频率将被视为反应标记。我们还描述了在催化剂的存在下酯化皂化所获得的结果，其中反应混合物包含-如前面的情况-电偶极子和离子，但响应叠加在1 MHz-10 GHz频带中。在这种情况下，并且出于简化的原因，低频带离子电导率是反应标记。本文的目的是将合成化学反应转化为电子术语，以使电子工程师能够理解电磁波与材料之间的相互作用。版权所有（C）2008 John Wiley＆Sons，Ltd.

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