低不饱和度高活性聚醚多元醇的研制  

Preparation of Polyether Polyols with Low Unsaturation and High Reactivity

作　　者：李正梅[1] 赵传富[1] 赵征[1] 周集义[1] 

机构地区：[1]黎明化工研究院,洛阳471001

出　　处：《聚氨酯工业》2001年第1期31-33,共3页Polyurethane Industry

摘　　要：使用双金属氰化物络合催化剂 ,首先制备了低不饱和度高相对分子质量聚氧化丙烯多元醇 ,再采用碱金属化合物催化剂 ,用环氧乙烷封端 ,制得高活性聚醚多元醇。所得聚醚二醇及聚醚三醇的羟值约为 2 6mgKOH/g ,不饱和度约 0 .0 0 7mmol/g ,伯羟基摩尔分数大于 85%A polyether polyols with low monol and high reactivity were prepared by steps of:(a) using a double metal cyanide catalyst (DMC) to prepare polyoxypropylene polyols with low unsaturation and high molecular weight;(b) treating said polyol with alkali compound;(c) capping said base treated polyol with ethylene oxide.The hydroxyl value of the obtained polyether glycols and triols is about 26 mgKOH/g,The unsaturation of the polyols is about 0.007 mmol/g,and the molar fraction of primary hydroxyl groups is over 85%.

关 键 词：聚醚多元醇 低不饱和度 高相对分子质量 高活性聚醚 聚氨酯 

分 类 号：TQ326[化学工程—合成树脂塑料工业]