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Modification of poly(styrene-alt-maleic anhydride) with 1,3,4-oxadiazole units for electroluminescent devices

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    0101315 - UMCH-V 20043035 RIV DE eng J - Journal Article
    Aldea, G. - Výprachtický, Drahomír - Cimrová, Věra
    Modification of poly(styrene-alt-maleic anhydride) with 1,3,4-oxadiazole units for electroluminescent devices.
    [Modifikace poly(styren-alt-maleinanhydridu) pomocí 1,3,4-oxadiazolu pro elektroluminiscenční diody.]
    Macromolecular Symposia. Roč. 212, č. 1 (2004), s. 523-528. ISSN 1022-1360.
    [Electrical and Related Properties of Polymers and Other Organic Solids /9./. Prague, 14.07.2002-18.07.2002]
    R&D Projects: GA ČR GA203/01/0512
    Institutional research plan: CEZ:AV0Z4050913
    Keywords : electroluminescence * electron-transporting properties * oxodiazole
    Subject RIV: CD - Macromolecular Chemistry
    Impact factor: 0.691, year: 2004

    New copolymers of poly(styrene-alt-maleic anhydride) (PSMA) modified with 2-(4-aminophenyl)-5-(biphenyl-4-yl)-1,3,4-oxadiazole and hexylamine were prepared (e.g. PSMA-4). Electric and optical properties of the copolymers were studied. The currents obtained depend strongly on the content of oxadiazole units in the copolymers. Currents measured in PSMA-4 were more than two orders of magnitude higher than those measured in the copolymers without oxadiazole. Using polymer blends made of poly(9,9-dihexadecylfluorene-2,7-diyl) and PSMA-4, blue light-emitting devices were fabricated and their photoluminescence and electroluminescence spectra were measured.

    Byly připraveny nové kopolymery poly(styren-alt-maleicanhydridu) (PSMA) modifikované 2-(4-aminofenyl)-5-(bifenyl-4-yl)-1,3,4-oxadiazolem a hexylaminem (např. PSMA-4) a byly studovány jejich optické a elektrické vlastnosti. Získaný proud silně závisí na obsahu oxadiazolových jednotek v kopolymeru. V kopolymeru PSMA-4 byl o více než dva řády vyšší než v kopolymerech bez oxadiazolu. Polymerní diody emitující modré světlo byly vyrobeny z polymerních směsí PSMA-4 a poly(9,9-dihexadecylfluorene-2,7-diyl) a jejich fotoluminiscenční a elektroluminescenční spektra byla změřena.
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