The method which using solid alkali as catalyst to prepare the polyethylene glycol ester of fatty acids by ester exchange reaction of fatty acid esters and polyethylene glycol is proposed.

• 提出采用固体碱为催化剂进行脂肪酸酯类化合物与聚乙二醇酯交换反应来制备聚乙二醇脂肪酸酯基的方法。