GC法测定聚氧乙烯聚氧丙烯型非离子表面活性剂中EO和PO的组成比

Determination of Proportion of the EPOXy Ethana and the EPOXy Propylana in the Polyoxyethylene Polyoxy Propylene by GC method

本文使用乙酸一对一甲苯磺酸试剂断裂聚氧乙烯聚氧丙烯聚合物中的醚键，用气相色谱法测定了裂解产物乙二醇二乙酸酯和丙二醇二乙酸酯的相对量，从而计算环氧乙烷和环氧丙烷的组成比。实验选择了最佳反应条件。测定结果令人满意。

In this paper, the ether bonds in the pdyoxyethylene polyoxy propyene are cracked by the solution of ethcnoyl-opposite methylbenzene suphonicacid.The proportion of ACOCH2CH2OAC and ACOCH2CH2OAC is determined by GC, So the proportion of the epexyethane and the epoxy propylana is calculated.The best condition is choosed by experiment. The results are satisfactory.