第二步，在金属钾催化条件下，使第一步产物缩水甘油醚发生开环加成反应生成双子表面活性剂的中间体低聚二醇。
The second step, the digomeric glycol-intermediate product of Gemini. surfactant was prepared by opening ring reaction of glycide ether in the presence of potassium as catalyst.
再与低含氢硅油进行硅氢加成反应，合成出环氧聚醚改性聚甲基硅氧烷；
It was then reacted with low hydrogen containing silicone oil via hydrosilylation to produce epoxy-containing polyether silicone.
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