生物基增塑剂2,5-呋喃二甲酸正丁酯的合成及其优化

Synthesis and Technological Optimization of Dibutylfuran-2,5-dicarboxylate as a Bio-based Plasticizer

以碳酸钾为催化剂,通过酯交换法以2,5-呋喃二甲酸二甲酯(DMF)和正丁醇为原料合成了2,5-呋喃二甲酸正丁酯(DBF),并在控制单因素变量实验的基础上,利用响应面法研究了工艺的反应条件(反应时间、催化剂用量、反应温度)对DBF产率的影响。结果表明,合成DBF的最佳反应条件为:反应温度为90℃,催化剂碳酸钾的用量为DMF用量的4%(质量分数,下同),反应时间为76.05min时,DBF的平均产率为96.47%。

In this work, dibutylfuran-2,5-dicarboxylate（DBF） was synthesized by a transesterification method using dimethyl furan-2,5-dicarboxylate（DMF）and n-butyl alcohol as raw materials and potassium carbonate as a catalyst.The effects of synthetic conditions including reaction time,catalyst dosage and reaction temperature on the yield of DBF were investigated by a response surface methodology on the basis of single-factor experiments.The results indicated that the optimum conditions for the synthesis of DBF were obtained at a reaction temperature of 90 ℃,a catalyst content of 4 wt % in DMF and reaction time of 76.05 min,and an average yield of 96.47 wt% was achieved for DBF when being synthesized at such conditions.