Patent ID: 7244515
Filing Date: 2007-07-17
Classification: C08G,C09K,H01L,Y10S

Abstract:
1. A polymeric fluorescent substance showing fluorescence in the solid state and having a polystyrene reduced number-average molecular weight of 10 3 to 10 8 , wherein the substance is a random copolymer and contains one or more repeating units of formula (1) and one or more repeating units of formula (2), and the total amount of repeating units of formula (1) is 10 mol% or more and 90 mol% or less based on the total amount of repeating units of formulae (1) and (2): wherein, R wherein, Ar wherein, R 13 and R 16 represent each independently a group selected from the group consisting of alkyl groups having 1 to 20 carbon atoms, alkoxy groups having 1 to 20 carbon atoms, alkylthio groups having 1 to 20 carbon atoms, alkylsilyl groups having 1 to 60 carbon atoms, alkylamino groups having 1 to 40 carbon atoms, aryl groups having 6 to 60 carbon atoms, aryloxy groups having 6 to 60 carbon atoms, arylsilyl groups having 6 to 60 carbon atoms, arylamino groups having 6 to 60 carbon atoms, arylalkyl groups having 7 to 60 carbon atoms, arylalkoxy groups having 7 to 60 carbon atoms, arylalkylsilyl groups having 7 to 60 carbon atoms, arylalkylamino groups having 7 to 60 carbon atoms, arylalkenyl groups having 8 to 60 carbon atoms, arylalkynyl groups having 8 to 60 carbon atoms, monovalent heterocyclic compound groups having 4 to 60 carbon atoms and a cyano group; c and d represent each independently an integer of 0 to 4; when c is 2 or more, a plurality of R 13 s may be the same or different; when d is 2 or more, a plurality of R 16 s may be the same or different; wherein one or two of substituents on a benzene ring are groups selected from the group consisting of alkoxy groups, aryl groups substituted with an alkoxy group, aryloxy groups and arylalkoxy groups, R 14 and R 15 represent each independently a group selected from the group consisting of a hydrogen atom, alkyl groups having 1 to 20 carbon atoms, aryl groups having 6 to 60 carbon atoms, arylalkyl groups having 7 to 60 carbon atoms, monovalent heterocyclic compound groups having 4 to 60 carbon atoms and a cyano group; R 13 to R 16 may be connected to form a ring; and when R 13 to R 16 are a group containing an alkyl chain, one or more of a methyl group, a methylene group and a methine group constituting the alkyl chain may be substituted with a group containing a hetero atom; and formula (12): wherein, Ar 5 represents an arylene group or a divalent heterocyclic compound group; R 24 and R 29 represent each independently a group selected from the group consisting of alkyl groups having 1 to 20 carbon atoms, alkoxy groups having 1 to 20 carbon atoms, alkylthio groups having 1 to 20 carbon atoms, alkylsilyl groups having 1 to 60 carbon atoms, alkylamino groups having 1 to 40 carbon atoms, aryl groups having 6 to 60 carbon atoms, aryloxy groups having 6 to 60 carbon atoms, arylsilyl groups having 6 to 60 carbon atoms, arylamino groups having 6 to 60 carbon atoms, arylalkyl groups having 7 to 60 carbon atoms, arylalkoxy groups having 7 to 60 carbon atoms, arylalkylsilyl groups having 7 to 60 carbon atoms, arylalkyamino groups having 7 to 60 carbon atoms, arylalkenyl groups having 8 to 60 carbon atoms, arylalkynyl groups having 8 to 60 carbon atoms, monovalent heterocyclic compound groups having 4 to 60 carbon atoms and a cyano group; q and r represent each independently an integer of 0 to 4; when q is 2 or more, a plurality of R 24 s may be the same or different; when r is 2 or more, a plurality of R 29 s may be the same or different; R 25 to R 28 represent each independently a group selected from the group consisting of a hydrogen atom, alkyl groups having 1 to 20 carbon atoms, aryl groups having 6 to 60 carbon atoms, arylalkyl groups having 7 to 60 carbon atoms, monovalent heterocyclic compound groups having 4 to 60 carbon atoms and a cyano group; R 24 to R 29 may be connected to form a ring; and when R 24 to R 29 are a group containing an alkyl chain, one or more of a methyl groups, a methylene group and a methine group constituting the alkyl chain may be substituted with a group containing a hetero atom.