Bioerodible polyorthoesters useful as orthopedic implants or vehicles for the sustained delivery of pharmaceutical, cosmetic and agricultural agents contain amine functionalities and .alpha.-hydroxy acid-containing groups.

Os polyorthoesters de Bioerodible úteis como implants ou veículos orthopedic para a entrega sustentada de agentes pharmaceutical, cosmetic e agriculturais contêm funcionalidades do amine e grupos acid-containing alpha.-alpha.-hydroxy.