环氧乙烷和环氧丙烷组成比的测定

Determination of the ratio of expoxyethane and epoxy propane

本文采用乙酰 -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 ,从而计算环氧乙烷和环氧丙烷的组成比 ,取得了较好的结果。

It's determination of the relative amount of pyrolysis product--diacetate glycol ester and diace tate propylene glycol ester by gas chromatography,the paper adopts acetyl p-methyl benzenesufomic acid to break out ether bond of polymer of polyoxyethylene and polyoxypropylene,so that the ratio of expoxyethane and epoxy propane is counted,good result gotten.