Series of new polyimide-processing additives decrease free volume and pickup of moisture in new 422 copolyimide. Physical properties of several copolyimides synthesized from linear BDSDA/ODA/MPD homopolymers investigated previously, by positron-annihilation spectroscopy, with results indicating copolyimides have unique transition molecular structure characterized by higher electron densities and stronger bonds. Transition structure permits both physical and chemical entry of water molecules into it.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Additives Lower Pickup Of Moisture By Polyimides


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    1989-04-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Additives Lower Dielectric Constants Of Polyimides

    Stoakely, Diane M. / St. Clair, Anne K. / Emerson, Burt R., Jr. et al. | NTRS | 1990


    Additives Improve Processing Of Polyimides

    St. Clair, Terry L. / Burks, Harold D. / Stoakley, Diane M. et al. | NTRS | 1988


    Metal-Ion Additives Reduce Thermal Expansion Of Polyimides

    Stoakley, Diane M. / St. Clair, Anne K. / Emerson, Burt R., Jr. et al. | NTRS | 1994


    Low-Dielectric Polyimides

    St. Clair, Anne K. / St. Clair, Terry L. / Winfree, William P. et al. | NTRS | 1989