油酸新戊二醇癸二酸混合酯的合成及其性能研究  

Synthesis of Mixed Esters of Oleic Acid,Neopentyl Glycol and Sebacia Acid and Study of Their Properties

作　　者：金小容[1] 刘士军[1] 廖德仲[2] 何节玉[2] 毛立新[2] 许怡学[2] 

机构地区：[1]中南大学化学学院,湖南长沙410083 [2]湖南理工学院化学化工系,湖南岳阳414000

出　　处：《合成化学》2007年第4期434-437,共4页Chinese Journal of Synthetic Chemistry

摘　　要：以新戊二醇（NPG）和癸二酸（SA）为原料,经酯化反应合成了“寡聚物”（1）,测定1的寡聚度（m）。当n（NPG）∶n（SA）=1.4-3.0时,1的m在5.44-1.61,收率95%以上。将1与油酸进行酯化得到混合酯（2）,收率83%-89%。测定了2的粘度和热氧化稳定性,结果表明2的粘度随着m的增大而增大,热氧化稳定性随m的增大而提高。2在40℃的粘度为（116-273）mm2.s^-1,粘度指数均超过200,凝点低于-40℃。1和2的结构经IR表征。Oligomers （1） were synthesized from neopentyl glycol（NPG） and sebacic acid （SA）. The degree（m） of 1 were 5.44 -1.61 and the yield of I was over 95% when n（NPG） ： n（SA） = 1.4-3.0. The mixed esters（2） in yields of 83% -89% were prepared by the esterification of 1 with oleic acid. The viscosity and thermo-oxidative stability of 2 were determined. The results showed that the viscosity and thermo-oxidative stability of 2 increased with m increasing. Viscosity of 2 at 40℃ was in the range of （116 -273） mm2 · s^-1, and has very high viscosity indices higher than 200, a solidifying point below - 40℃. The structures of I and 2 were identified by IR.

关 键 词：新戊二醇 癸二酸 寡聚物 油酸 混合酯 润滑性能 酯化反应 

分 类 号：O623.624[理学—有机化学]