A method of producing a polyether polyol that includes reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, the low molecular weight initiator having a number average molecular weight of less than 1,000 g/mol and a nominal hydroxyl functionality at least 2, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R1)1(R2)1(R3)1(R4)0 or 1. Whereas, M is boron, aluminum, indium, bismuth or erbium, R1, R2, and R3 each includes a same fluoroalkyl-substituted phenyl group, and optional R4 includes a functional group or functional polymer group. R1, R2, and R3 are the same fluoroalkyl-substituted phenyl group. The method further includes forming a polyether polyol having a number average molecular weight of greater than the number average molecular weight of the low molecular weight initiator in the presence of the Lewis acid catalyst.
一种生产聚醚多元醇的方法,包括在聚合催化剂存在下,使低分子量
引发剂与
环氧乙烷反应,低分子量
引发剂的平均分子量小于1,000克/摩尔,公称羟基官能度至少为2,聚合催化剂为通式为M(R1)1(R2)1(R3)1(R4)0或1的
路易斯酸催化剂。其中,M 是
硼、铝、
铟、
铋或
铒,R1、R2 和 R3 各包括一个相同的氟烷基取代苯基,任选的 R4 包括一个官能团或官能团聚合物基团。R1、R2 和 R3 是相同的氟烷基取代苯基。该方法进一步包括在
路易斯酸催化剂存在下形成平均分子量大于低分子量
引发剂平均分子量的聚醚多元醇。