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.
为了改善蚕丝织物的服用性能，提高其抗皱和抗菌性能，用丙三醇缩水甘油醚和壳聚糖对蚕丝织物进行后整理。
The silk fabric was treated with propanetriol-diglycidyl-ether and chitosan in an attempt to improve its serviceability, anti-bacterial and wrinkle resistant properties.
结果表明，聚乙二醇缩水甘油醚对丝胶蛋白具有明显的交联作用。
The result showed that polyethylene glycol diglycidyl ether cross linked sericin obviously.
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