应用定标粒子溶液理论,导出了动力学介质效应公式,分析计算了乙酸乙酯皂化反应的介质效应,并与本文实验值相比较,结果,规律一致,数值相近。溶剂体系为水-乙醇和水-二甲亚砜。由于反应体系中包含有极性分子及离子,故在计算相互作用自由焓时,对定标粒子理论作适当补充,包括了色散能、诱导能、取向能和静电作用能。 Using the theory of scaled particle solution, the kinetic medium effect formula was deduced. The medium effect of the ethyl acetate saponification reaction was analyzed and calculated. The results were consistent with the experimental results and the numerical values ​​were similar. The solvent system is water-ethanol and water-dimethyl sulfoxide. Due to the inclusion of polar molecules and ions in the reaction system, the theory of particle scaling is appropriately supplemented in the calculation of the free enthalpy of interaction, including the dispersion energy, the induced energy, the orientation energy and the electrostatic energy.