脂肪酸酯水解行为及与低聚果糖缔合行为的研究和应用  

Study on the hydrolysis of aliphatic esters,the association effects between FOS and aliphatic esters and application

作　　者：仝建波[1] 寇建仁[1] 李美萍[1] 胡永钢[1] 张生万[1] 

机构地区：[1]山西大学化学化工学院,山西太原030006

出　　处：《化学研究与应用》2006年第7期818-822,共5页Chemical Research and Application

基　　金：山西省自然科学基金(20041013)资助项目

摘　　要：In this work the hydrolysis rate constants(k) of a series of Aliphatic esters in different concent of ethanol solution were studied by conductometry,and some correlative analysis were done about the relation among the molecular structure of a series of Aliphatic esters,thecondition of hydrolysis and hydrolysis rate constants(k).The quantificational mathematic equation:lgk=a+blg PEI(R)+clgε,among hydrolysis rate constants(k),the polarizability effect index(PEI) of alkyl group(R)and dielectric constant(ε) and this behavior was deduced.Simultaneously,the effect of FOS on hydrolysis rate constants(k) of Aliphatic esters in 39.9%(v/v) ethanol solution were measured in above meaning.The quantificational mathematic expression between hydrolysis rate constants(k) of ester and the concentration of FOS(M):k=k′/(1+AM),was deduced and validated.The result showed that FOS inhibited the hydrolysis reaction of Aliphatic esters.In this work the hydrolysis rate constants （k） of a series of Aliphatic esters in different concent of ethanol solution were studied by eonductometry, and some correlative analysis were done about the relation among the molecular structure of a series of Aliphatie esters, thecondition of hydrolysis and hydrolysis rate constants （k）. The quanfifieational mathematic equation： lgk = a ＋ blg PEI （R） ＋ clgε, among hydrolysis rate constants （k）, the polarizability effect index （PEI） of alkyl group （R） and dielectric constant （ε） and this behavior was deduced. Simultaneously, the effect of FOS on hydrolysis rate constants （k） of Aliphatie esters in 39. 9% （v/v） ethanol solution were measured in above meaning. The quantifieational mathematic expression between hydrolysis rate constants （k） of ester and the concentration of FOS （M） = k = k＇/ （ 1 ＋ AM）, was deduced and validated. The result showed that FOS inhibited the hydrolysis reaction of Aliphatie esters. K

关 键 词：脂肪酸酯 极化效应指数 介电常数 低聚果糖 缔合常数 

分 类 号：O623.6[理学—有机化学]