Method for acetylating low-molecular polyether

The invention discloses a method for acetylating low-molecular polyether, and relates to the technical field of end-capped polyether preparation processes. The method comprises the following step: carrying out esterification reaction on polyether with the molecular weight of less than or equal to 1,000g/mol and acetic acid to obtain acetic acid esterification end-capped polyether. Compared with other end-capping methods, the method has the advantages that the raw materials are easier to obtain and can be repeatedly utilized, and the method is environmentally friendly, lower in cost and high in end-capping rate. 本发明公开了一种低分子聚醚乙酰化的方法，涉及封端聚醚制备工艺的技术领域，该方法包括将分子量≤1000g/mol的聚醚和乙酸进行酯化反应，以制得乙酸酯化封端的聚醚。该方法与其他封端方法相比，原料更易获得且能够重复利用，绿色环保，成本更低，且封端率高。