微波频率下乙酸乙酯皂化反应等效介电系数的实验研究

黄卡玛; 凌小平; 杨晓庆; 赵 翔

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微波频率下乙酸乙酯皂化反应等效介电系数的实验研究

论文 | 更新时间：2025-07-16

- 微波频率下乙酸乙酯皂化反应等效介电系数的实验研究
- Experimental Study on the Effective Permittivity of the CH₃COOC₂H₅ Saponification Reaction at Microwave Frequency
- 电子学报 2004年32卷第5期页码：833-835
- 作者机构：
  
  四川大学电子信息学院,四川,成都,610064
- 作者简介：
- 基金信息：
  
  国家杰出青年科学基金 (No.60125102)
- DOI：
  中图分类号： O45
- 纸质出版：2004
- 稿件说明：
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黄卡玛, 凌小平, 杨晓庆, 等. 微波频率下乙酸乙酯皂化反应等效介电系数的实验研究[J]. 电子学报, 2004,32(5):833-835.

HUANG Ka-ma, LING Xiao-ping, YANG Xiao-qing, et al. Experimental Study on the Effective Permittivity of the CH₃COOC₂H₅ Saponification Reaction at Microwave Frequency[J]. Acta Electronica Sinica, 2004, 32(5): 833-835.
黄卡玛, 凌小平, 杨晓庆, 等. 微波频率下乙酸乙酯皂化反应等效介电系数的实验研究[J]. 电子学报, 2004,32(5):833-835. DOI：

HUANG Ka-ma, LING Xiao-ping, YANG Xiao-qing, et al. Experimental Study on the Effective Permittivity of the CH₃COOC₂H₅ Saponification Reaction at Microwave Frequency[J]. Acta Electronica Sinica, 2004, 32(5): 833-835. DOI：

摘要

微波化学研究中的关键问题之一是对化学反应过程中的介电系数进行跟踪和测量.本文采用开槽同轴谐振探头首次测量了乙酸乙酯皂化反应对微波的反射系数

并用遗传算法获得了微波频率下该反应的等效介电系数.结果发现等效介电系数实部随温度的变化趋势符合L Onsager和Debye理论对极性混合溶液的描述;等效介电系数虚部因极化损耗和欧姆损耗随温度变化而相应变化;而等效介电系数实部随时间的变化与L Onsager极性混合溶液等效介电系数理论的描述相反.

Abstract

One of the most important studies in microwave chemistry is to obtain the effective permittivity of chemical reaction.In this paper

a new type of open-slotted coaxial line sensor was employed to measure the reflection coefficients of reaction system

and then the effective permittivity of reaction was calculated by using genetic algorithm (GA).The results show the changes of the real part of effective permittivity with time agree with L.Onsager's and Debye's theory.The relationship between the imaginary part of effective permittivity and temperature is very complicated because the polarization loss and Ohm's loss vary with temperature at the same time. The changes of the real part of effective permittivity with time are opposite to the results described by L.Onsager's theory.

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