Anzeige
Erschienen in:
1984 | OriginalPaper | Buchkapitel
Synthesis and Properties of Polyetherimide Polymers
verfasst von : H. M. Relles
Erschienen in: Contemporary Topics in Polymer Science
Verlag: Springer US
Enthalten in: Professional Book Archive
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Polyetherimides are a new class of high performance polymers whose chemical compositions can be tailored to provide materials having glass transition temperatures ranging from ~150°C to ~300°C. Their outstanding thermo-oxidative stability and flame and solvent resistance are characteristic of aromatic polyimides but, unlike many other polyimides, they can also be processed by conventional techniques (e.g., injection molding). The key reactions in their various syntheses were nucleophilic aromatic nitrodisplacements by aryloxide ions. This and other chemical steps are discussed in detail along with a description of some of the physical properties of the polymers.