摘要
以丙烯酸和十八醇为原料，对甲苯磺酸为催化剂，对苯二酚为阻聚剂，环己烷为携水剂，采用直接酯化法合成了丙烯酸十八酯。确定了合成的最佳工艺，即丙烯酸与十八醇物质的量比为１．２∶１．０，对甲苯磺酸的质量分数为１．０％，对苯二酚的质量分数为０．７％，反应温度为１２５℃，反应时间为６ｈ；在此工艺条件下，酯化转化率可达９８％以上。精制产品经红外光谱分析及对产物熔点、折光率的测定，证明所得产物为丙烯酸十八酯，熔点为３０．６～３２．０℃；折光率为１．４４６５，均与指标相符，该产物可作为聚合反应的单体使用。
Octadecyl acrylate was synthesized by direct esterification from octadecyl alcohol and acrylic acid with p methylbenzene sulfonic acid as catalyst. The influences of the molar ratio of acrylic acid and octadecyl alcohol, amount of catalyst and inhibitor, reaction temperature on esterification were investigated by orthogonal design.The IR spectra and some physical characteristics of product were in good agreement with that of literatures.
出处
《大庆石油学院学报》
CAS
北大核心
1998年第2期79-81,共3页
Journal of Daqing Petroleum Institute
关键词
丙烯酸
十八醇
丙烯酸十八酯
合成
acrylic acid,octadecyl alcohol,octadecyl acrylate,esteritication,synthesis
