Electroluminescent material, comprising a polymer of the formula III wherein n ranges from 2 to 10000; L is CH 2, CO or a direct bond; R 9, R 11, R 13, R 14, are selected from H, C 1 -C 18 alkyl, halogen, C 1 -C 18 alkyl which is substituted by E and/or interrupted by D, C 6 -C 24 aryl, C 6 -C 24 aryl which is substituted by G, C 2 -C 18 alkenyl, C 2 -C 18 alkynyl, C 1 -C 18 alkoxy, C 1 -C 18 alkoxy which is substituted by E and/or interrupted by D, C 7 -C 25 aralkyl, SiRR'R", GeRR'R", POAr 2, PAr 2, or is -CO-R 28; each of the residues R 9" is independently selected from those defined for R 9, Rx is H or methyl, Sp is a divalent organic spacer, x10 is 0 or 1; D is -CO-; -COO-; -S-; -SO-; -SO 2 -; -O-; -NR 25 -; -SiR 30 R 31 -; -POR 32 -; -CR 23 =CR 24 -; or -C≡C-; E is -OR 29; -SR 29; -NR 25 R 26; -COR 28; -COOR 27; -CONR 25 R 26; -CN; or halogen; G is E, C 1 -C 18 alkyl, C 3 -C 12 cycloalkyl, C 2 -C 18 alkyl which is interrupted by D, C 1 -C 18 perfluoroalkyl, or C 1 -C 18 alkoxy which is substituted by E and/or interrupted by D, wherein R 23, R 24, R 25 and R 26 are independently of each other H; C 6 -C 18 aryl; C 6 -C 18 arylalkyl; C 3 -C 12 cycloalkyl; C 6 -C 18 aryl or C 6 -C 18 arylalkyl which is substituted by C 1 -C 18 alkyl and/or C 1 -C 18 alkoxy; C 1 -C 18 alkyl; or C 2 -C 18 alkyl which is interrupted by -O-; or R 25 and R 26 together form a five or six membered ring; R 27 and R 28 are independently of each other H; C 6 -C 18 aryl; C 6 -C 18 arylalkyl; C 6 -C 18 aryl or C 6 -C 18 arylalkyl which is substituted by C 1 -C 18 alkyl and/or C 1 -C 18 alkoxy; C 1 -C 18 alkyl; C 3 -C 12 cycloalkyl; or C 2 -C 18 alkyl which is interrupted by -O-; R 29 is H; C 6 -C 18 aryl; C 6 -C 18 arylalkyl; C 6 -C 18 aryl or C 6 -C 18 arylalkyl which is substituted by C 1 -C 18 alkyl and/or C 1 -C 18 alkoxy; C 1 -C 18 alkyl; C 2 -C 18 alkylcarbonyl; C 3 -C 12 cycloalkyl; or C 2 -C 18 alkyl or C 2 -C 18 alkylcarbonyl which is interrupted by -O-; R 30 and R 31 are independently of each other C 1 -C 18 alkyl, C 3 -C 12 cycloalkyl, C 6 -C 18 aryl, or C 6 -C 18 aryl, which is substituted by C 1 -C 18 alkyl, and R 32 is C 1 -C 18 alkyl, C 6 -C 18 aryl, or C 6 -C 18 aryl, which is substituted by C 1 -C 18 alkyl, R, R' and R" independently are selected from C 1 -C 12 alkyl, C 1 -C 12 haloalkyl, C 5 -C 10 aryl, C 3 -C 12 cycloalkyl, preferably from C 1 -C 6 alkyl, phenyl, cyclopentyl, cyclohexyl; and Ar independently is selected from C 5 -C 10 aryl, or C 5 -C 10 aryl which is substituted by C 1 -C 18 alkyl; a luminescent component selected from phosphorescent metal complexes and fluorescent dopants. n ranges from 2 to 10000; L is CH 2, CO or a direct bond; R 9, R 11, R 13, R 14, are selected from H, C 1 -C 18 alkyl, halogen, C 1 -C 18 alkyl which is substituted by E and/or interrupted by D, C 6 -C 24 aryl, C 6 -C 24 aryl which is substituted by G, C 2 -C 18 alkenyl, C 2 -C 18 alkynyl, C 1 -C 18 alkoxy, C 1 -C 18 alkoxy which is substituted by E and/or interrupted by D, C 7 -C 25 aralkyl, SiRR'R", GeRR'R", POAr 2, PAr 2, or is -CO-R 28; each of the residues R 9" is independently selected from those defined for R 9, Rx is H or methyl, Sp is a divalent organic spacer, x10 is 0 or 1; D is -CO-; -COO-; -S-; -SO-; -SO 2 -; -O-; -NR 25 -; -SiR 30 R 31 -; -POR 32 -; -CR 23 =CR 24 -; or -C≡C-; E is -OR 29; -SR 29; -NR 25 R 26; -COR 28; -COOR 27; -CONR 25 R 26; -CN; or halogen; G is E, C 1 -C 18 alkyl, C 3 -C 12 cycloalkyl, C 2 -C 18 alkyl which is interrupted by D, C 1 -C 18 perfluoroalkyl, or C 1 -C 18 alkoxy which is substituted by E and/or interrupted by D, wherein R 23, R 24, R 25 and R 26 are independently of each other H; C 6 -C 18 aryl; C 6 -C 18 arylalkyl; C 3 -C 12 cycloalkyl; C 6 -C 18 aryl or C 6 -C 18 arylalkyl which is substituted by C 1 -C 18 alkyl and/or C 1 -C 18 alkoxy; C 1 -C 18 alkyl; or C 2 -C 18 alkyl which is interrupted by -O-; or R 25 and R 26 together form a five or six membered ring; R 27 and R 28 are independently of each other H; C 6 -C 18 aryl; C 6 -C 18 arylalkyl; C 6 -C 18 aryl or C 6 -C 18 arylalkyl which is substituted by C 1 -C 18 alkyl and/or C 1 -C 18 alkoxy; C 1 -C 18 alkyl; C 3 -C 12 cycloalkyl; or C 2 -C 18 alkyl which is interrupted by -O-; R 29 is H; C 6 -C 18 aryl; C 6 -C 18 arylalkyl; C 6 -C 18 aryl or C 6 -C 18 arylalkyl which is substituted by C 1 -C 18 alkyl and/or C 1 -C 18 alkoxy; C 1 -C 18 alkyl; C 2 -C 18 alkylcarbonyl; C 3 -C 12 cycloalkyl; or C 2 -C 18 alkyl or C 2 -C 18 alkylcarbonyl which is interrupted by -O-; R 30 and R 31 are independently of each other C 1 -C 18 alkyl, C 3 -C 12 cycloalkyl, C 6 -C 18 aryl, or C 6 -C 18 aryl, which is substituted by C 1 -C 18 alkyl, and R 32 is C 1 -C 18 alkyl, C 6 -C 18 aryl, or C 6 -C 18 aryl, which is substituted by C 1 -C 18 alkyl, R, R' and R" independently are selected from C 1 -C 12 alkyl, C 1 -C 12 haloalkyl, C 5 -C 10 aryl, C 3 -C 12 cycloalkyl, preferably from C 1 -C 6 alkyl, phenyl, cyclopentyl, cyclohexyl; and Ar independently is selected from C 5 -C 10 aryl, or C 5 -C 10 aryl which is substituted by C 1 -C 18 alkyl; a luminescent component selected from phosphorescent metal complexes and fluorescent dopants.