Abstract
Oxetane ring, four membered cyclic ether, is a analogous compound to oxirane ring, which is well known as Epoxy Resin. Epoxy resins are widely used in variety of applications, such as adhesives, coatings, resists and so on. Oxetane resins have not been, however, applicable to such fields. In this paper, the reactivity of oxetane compounds toward ring opening reactions and polymerizations. The synthesis of oxetane resins, which possessing oxetane moiety as reactive site, are also reviewed.