REACTIONS OF EPOXY WITH OTHER FUNCTIONAL GROUPS AND THE ARISING SEC-HYDROXYL GROUPS.

Abstract

The uncatalyzed reaction of the aliphatic monoepoxide (Cardura E) with phenolic hydroxyl, aliphatic primary and secondary hydroxyl, aliphatic and aromatic carboxyl, aliphatic primary and secondary amino, aromatic monoamino groups as well as the reaction of the aromatic monoepoxide (phenyl glycidyl ether) with phenolic hydroxyl group have been investigated. The phenolic hydroxyl reacts with the epoxy group at a rate well measurable even at 115 degree C, and the competitive reaction of the forming secondary minus OH groups activated by the phenoxy group takes place. The reaction rate of the aliphatic alcohols with the epoxy groups is very slow even at 150 to 160 degree C. The catalyzing effect of the acid induces a secondary reaction. The aliphatic and aromatic primary and secondary amines react with the epoxy groups at a high rate. The aliphatic primary amine surpasses the aromatic in reactivity.