聚氧乙烯聚氧丙烯型非离子表面活性剂中氧乙基和氧丙基比例的测定

DETERMINATION OF PROPORATION OF THE EPOXY ETHANE AND THE EPOXY PROPYLANE IN THE POLYOXYETHYLENE POLYOXYPROPYLENE BY CRACKING ETHER BONDSGC METHOD

使用乙酰对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 ,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 polyoxyethylene polyoxypropylene are cracked by the solution of acetylptoluene sulfonic acid . The proporation of AcOCH 2CH 2OAc and AcOCH 2CH(CH 3)OAc is determined by GC, so that the proportion of the epoxyethane and the epoxy propylane is calculated. The best condition is choosed by experiment. The results are satisfactory.