衣康酸二正辛酯的合成与表征  

Synthesis and characterization of di-n-octyl itaconate

作　　者：曹凤芝[1] 李彤[1] 李盼[1] 许军[1] 张芹芹[1] 武玉民[1] 

机构地区：[1]青岛科技大学化工学院,山东青岛266042

出　　处：《应用化工》2015年第2期281-283,共3页Applied Chemical Industry

基　　金：山东省自然科学基金(ZR2011BM006)

摘　　要：采用衣康酸和正辛醇为原料,以对甲苯磺酸为催化剂合成了衣康酸二正辛酯。研究了反应温度、反应时间、醇酸摩尔比、催化剂用量等因素对酯化反应的影响,确定了最佳的酯化反应条件:反应温度为140℃,反应时间为3.0 h,醇酸摩尔比为2.20∶1,对甲苯磺酸用量为衣康酸质量的2.0%。最后对产物进行了红外光谱和气相色谱分析,通过谱图分析符合衣康酸二正辛酯的结构特征,且纯度为99.7%。Di-n-octyl itaconate was synthesized by esterification using itaconic acid（IA） and n-octanol as the raw materials,and p-toluenesulfonic acid as the catalyst. The effect of reaction temperature,reaction time,molar ratios of the reactants and amount of catalyst on the esterification reaction were investigated.The optimal reaction conditions were as follows： the reaction temperature was 140 ℃,the reaction time3. 0 h,molar ratio of n-octanol to IA 2. 20∶ 1,and the amount of p-toluenesulfonic acid catalyst was 2. 0%（IA）. Finally,the structure of product was confirmed by FTIR,and the purity was 99. 7% by GC.

关 键 词：衣康酸 正辛醇 衣康酸二正辛酯 酯化反应 

分 类 号：TQ314[化学工程—高聚物工业]