聚氧乙烯脂肪醇二元酸酯的合成及应用

以对甲苯磺酸为催化剂、石油醚为携水剂，合成了性能优良的聚氧乙烯脂肪醇二元酸酯，考察了聚氧乙烯脂肪醇醚聚合度、反应温度、反应时间、催化剂用量及原料摩尔比等工艺条件对反应转化率的影响，并在此基础上设计并进行正交试验，考察了各工艺条件对反应的影响程度，得到优化的工艺条件：醇醚聚合度3、反应温度220℃、反应时间4h、催化剂用量0.8wt%、原料摩尔比1：2。对合成的脂肪醇聚氧乙烯二元酸酯（简称醇醚酯）进行工业应用，结果表明所合成的醇醚酯作为高速纺化纤油剂主要单体，具有良好的耐热性、平滑性、牵伸性及粘和性能。

Synthesis of polyoxyethylene aliphatic alcohol diester and its industrial application

Polyoxyethylene aliphatic alcohol diester was synthesized using toluene-p-sulfonic acid as catalyst and petroleum ether as water-carrying agent. The influences of reaction temperature，reaction time, catalyst dosage and reactants molar ratio on the conversion were investigated. Orthogonal experiment design was conducted and optimum reaction conditions were obtained as follows: an alcohol ether polymerization degree of 3, a reaction temperature of 240℃, a reaction time of 6 h, a catalyst content of 0.8% and a molar ratio of binary acid to alcohol ether of 1:2.8. The industrial application of the prepared product showed that said product acted as the main monomer of spinning finishes exhibited good thermal stability, lubricity, drawability and cohesion.