Aromatic vinyl ether compounds represented by Formula (1) or by Formula (2) ##STR00001## wherein each R and R' is a hydrogen atom or a group represented by Formula (3) ##STR00002## and wherein the remaining variables are as defined in the specification, provided that at least one pR in Formula (1) and at least one uR in Formula (2) is a Formula (3) group. These aromatic vinyl ether compounds are useful as, e.g., curing agents for cationic polymerization.