Poly(9,9'-spiro-bisfluorenes), the production and use of same

Details Poly(9,9'-spiro-bisfluorenes), the production and use of same Poly(9,9'-spiro-bisfluorenes), the production and use of same

C - Chemistry, Metallurgy

07

C

C07C 25/22 (2006.01) C07C 17/12 (2006.01) C07C 43/225 (2006.01) C07C 49/792 (2006.01) C07C 49/813 (2006.01) C07C 63/49 (2006.01) C07C 63/72 (2006.01) C07C 69/65 (2006.01) C07C 69/76 (2006.01) C07C 211/61 (2006.01) C07C 233/65 (2006.01) C07C 309/39 (2006.01) C07C 309/74 (2006.01) C07C 311/16 (2006.01) C07C 323/09 (2006.01) C08G 61/00 (2006.01) C08L 65/00 (2006.01) C09D 5/22 (2006.01) C09K 11/06 (2006.01) H01L 33/00 (2006.01)

Patent

CA 2237461

Poly(bis-9,9'-fluorenes) are disclosed with identical or different recurring structural elements of formula (I), in which the two R1 groups independently of one another stand for H, C1-C18-alkyl, C6-C14-aryl, C7-C15-aralkyl, C1-C18- alkoxy, R2-(O-CnH2n)m-O-, C1-C18 alkylthio, C1-C18-dialkylamino, -C(O)OH, - C(O)O-C1-C18-alkyl, -C(O)-N(C1-C18-alkyl)2, SO3H, -SO3-C1-C18-alkyl, -SO2-N(C1- C18-alkyl)2, C1-C17-alkyl-C(O)-O- or C1-C17-alkyl-C(O)-, R2 stands for H or C1- C12-alkyl, n is a number between 2 and 6 and m is a number between 1 and 12. The polymers can be used on their own or mixed with at least one additional fluorophore whose absorption band overlaps with the emission band (fluorescence emission) of the polymer of formula (I), as an active radiating layer for light-emitting diodes, screens and display elements.

L'invention concerne des poly(bis 9,9'-fluorènes) avec des éléments structuraux récurrents, identiques ou différents, de la formule (I) où les deux radicaux R¿1? représentent, indépendamment l'un de l'autre, H, alkyle C¿1?-C¿18?, aryle C¿6?-C¿14?, aralkyle C¿7?-C¿15?, alcoxy C¿1?-C¿18?, R¿2?-(O-C¿n?H¿2n?)¿m?-O-, alkylthio C¿1?-C¿18?, dialkylamino C¿1?-C¿18?, -C(O)OH, -C(O)O-alkyle C¿1?-C¿18?, -C(O)-N(alkyle C¿1?-C¿18?)¿2?, -SO¿3?H, -SO¿3?-alkyle C¿1?-C¿18?, -SO¿2?-N(alkyle C¿1?-C¿18?)¿2?, alkyle C¿1?-C¿17?-C(O)-O- ou alkyle C¿1?-C¿17?-C(O), R¿2? représente H ou alkyle C¿1?-C¿12?, n vaut un nombre compris entre 2 et 6 et m vaut un nombre compris entre 1 et 12. Les polymères peuvent être utilisés seuls ou en mélange avec au moins un fluorophore dont la bande d'absorption recouvre la bande d'émission (émission fluorescente) du polymère de la formule (I), sous forme de couche de rayonnement active pour les diodes électroluminescentes, les écrans et les afficheurs.

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