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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。
Using acrylic acid and stearyl alcohol as raw materials, p-toluenesulfonic acid as catalyst, hydroquinone as polymerization inhibitor and cyclohexane as water-carrying agent, octadecyl acrylate was synthesized by direct esterification. The optimum conditions for the synthesis were determined. The molar ratio of acrylic acid to octadecanol was 1.2:1.0, the mass fraction of p-toluenesulfonic acid was 1.0%, and the mass fraction of hydroquinone was 0. 7%, the reaction temperature is 125 ℃, the reaction time is 6h; under the conditions of this process, the esterification conversion rate can reach more than 98%. Refined products by infrared spectroscopy and melting point of the product, the refractive index was measured to prove that the resulting product is octadecyl acrylate, the melting point of 30.6 ~ 32.0 ℃; refractive index of 1.4465, are in line with the indicator, the product Can be used as a monomer for polymerization.