title: Poly(1,2,4-oxadiazolidin-5-one)s synthesized by polycycloaddition of bisoxaziridines and diisocyanate.
abstract: A premier in polymer chemistry: the cycloaddition of bisoxaziridines with 4,4'-methylene diphenyl diisocyanate yields novel linear poly(1,2,4-oxadiazolidin-5-one) derivatives. The polymers are relatively stable (>200 °C) and model reactions show that the reaction rate strongly depends on the electronic properties of the oxaziridine unit; electron-donating substituents on the C atom of the heterocyclic ring promote the cycloaddition.
authors.affiliation: Institut für Organische Chemie und Makromolekulare Chemie II, Heinrich-Heine-Universität Düsseldorf, Germany.
authors.forename: Marcus
authors.initials: M
authors.lastname: Dickmeis
authors.forename: Hakan
authors.initials: H
authors.lastname: Cinar
authors.forename: Helmut
authors.initials: H
authors.lastname: Ritter