申请人:Coady Daniel Joseph
公开号:US20120046437A1
公开(公告)日:2012-02-23
A salt catalyst comprises an ionic complex of i) a nitrogen base comprising one or more guanidine and/or amidine functional groups, and ii) an oxoacid comprising one or more active acid groups, the active acid groups independently comprising a carbonyl group (C═O), sulfoxide group (S═O), and/or a phosphonyl group (P═O) bonded to one or more active hydroxy groups; wherein a ratio of moles of the active hydroxy groups to moles of the guanidine and/or amidine functional groups is greater than 0 and less than 2.0. The salt catalysts are capable of catalyzing ring opening polymerization of cyclic carbonyl compounds.
一种盐催化剂包括离子复合物,其中i)氮碱包括一个或多个胍啶和/或酰胺基团,和ii)含有一个或多个活性酸基团的氧酸,这些活性酸基团独立地包括与一个或多个活性羟基团结合的羰基(C═O)、亚氧基(S═O)和/或膦酰基(P═O);其中活性羟基团的摩尔数与胍啶和/或酰胺基团的摩尔数的比值大于0且小于2.0。这些盐催化剂能够催化环状羰基化合物的开环聚合。