关键词:微波化学;等效介电系数;混合溶液中图分类号:TN015 文献标识码:ABi vari at e Expansi on for Effecti ve Permi tt i vi t y of Esteri fi cati on of Methanol and Ol ei c Aci d wi t h One React ant ' s Concent rat i on and Temperat ure LIU Xi ng - peng ZHU Hua - cheng ZHANG Wen - congHUANG Ka - maFacul ty of El ectroni cs & Informati on Engi neeri ng, Si chuan Uni ver sity , Chengdu 610064, Chi na Abst ract: As a t i me varyi ng and non -equi l i bri um system, the el ect romagnet i c fi el d di stri buti on and absorpti on char acteri sti cs i n t he chemi cal r eacti on syst em change over t i me nonl i nearl y, and effecti ve permi tti vi ty can di r ect l y refl ect mi crowave t ransmi ssi on and absorpti on char acteri sti cs of the system. In thi s paper, effecti ve permi tt i vi ty of esteri f i cati on between met hanol and ol ei c aci d can be expanded as functi on of t wo var i abl es i ncl udi ng concentr ati on and temper ature, and the t emperatur e i n t he reacti on vari es i n the form of si ne functi on wi th t i me duri ng measurement pr ocess. A for mul a of ef fecti ve permi tt i vi t y i n t he chemi cal reacti on can be obtai ned by measuri ng the var i at i on of ef fecti ve permi ui vi ty of the r eacti ng mi xture sol uti on wi t h t he r eacti on t i me. The calcul ated resul ts are i n good agreement wi th the measured resul ts.Key words: microwave chemist ry; ef fecti ve permit ti vi t y; mixed soluti on 增 刊 刘兴鹏.朱铧丞,张文聪等:甲醇和油酸酯化反应过程中等效介电系数随反应物浓度和温度的二元展开· 257·面发挥了巨大的作用.