Provided are a polyimide film that, when applied as a material for a spacecraft, exhibits excellent resistance to atomic oxygen derived from an oxygen molecule which is an atmospheric residual component and generates a small amount of outgas compound upon heating; and a polyimide used in the polyimide film. A polyimide for a spacecraft, the polyimide containing a diamine-derived structural unit and an aromatic acid dianhydride-derived structural unit, wherein the polyimide contains, as the diamine-derived structural unit, at least a structural unit derived from a silicon-containing diamine represented by the following formula (1) (provided that the silicon-containing diamine has a number average molecular weight of 500 or less), and a proportion of the structural unit derived from the silicon-containing diamine is 5 to 100 mol% relative to the entire diamine-derived structural unit. (In the formula, R1 and R2 are each independently a divalent aliphatic hydrocarbon group having 3 to 20 carbons, R3, R4, R5, and R6 are each independently a monovalent aliphatic hydrocarbon group having 1 to 3 carbons, and m is 1 or 2.)


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    Titel :

    POLYIMIDE FOR SPACECRAFT, POLYIMIDE FILM FOR SPACECRAFT, AND SPACECRAFT MEMBER INCLUDING SAME


    Weitere Titelangaben:

    POLYIMID FÜR RAUMFAHRZEUG, POLYIMIDFILM FÜR RAUMFAHRZEUG UND RAUMFAHRZEUGELEMENT DAMIT
    POLYIMIDE POUR ENGIN SPATIAL, FILM DE POLYIMIDE POUR ENGIN SPATIAL, ET ÉLÉMENT D'ENGIN SPATIAL LE COMPRENANT


    Beteiligte:
    MORI AKIRA (Autor:in) / KIMOTO YUGO (Autor:in) / UMEDA KAORI (Autor:in)

    Erscheinungsdatum :

    16.10.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / B64G Raumfahrt , COSMONAUTICS



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