TECHNOLOGY FOCUS - POLYMERS - Preparation (Claimed): The preparation of the polymer, comprises polymerizing a monomer composition by Suzuki- or Buchwald-process. Preferred Components: The polymer comprises at least one compound structural unit of formula (Z-X1-Z) (IV). The compound structural unit comprises substituted diphenylmethane derivative of formula (IVb) or 6,6-diphenyl-6,12-dihydro-indeno(1,2-b)fluorene derivative of formula (IVd).X1 = spacer group, preferably substituted benzene-1,5-diyl moiety of formula (IVa); eitherR1-R6 = 1-40C alkyl, 1-40C (thio)alkoxy (both linear), 3-40C alkyl, 3-40C (thio)alkoxy (both branched or cyclic), silyl, substituted 1-40C keto group, 2-40C alkoxycarbonyl, 7-40C aryloxycarbonyl, -CN, -C(=O)NH2, -C(=O)-X2, -C(=O)-H, isocyano moiety, isocyanate moiety, thiocyanate moiety, thioisocyanate moiety, NH2, OH, NO2, CF3, Cl, Br, F, crosslinkable group, (hetero)aromatic ring with 5-60 ring atoms (optionally substituted) and/or (hetero)aryloxy with 5-60 ring atoms; orat least one group R1, R1+ring, at least one group R3, R3+ring, R4+R6, R4+ring, R6+ring = mono- or polycyclic, aliphatic or aromatic ring; orR1+R2 = mono- or polycyclic, aliphatic or aromatic ring, preferably substituted 9H-fluorene-9,9-diyl moiety of formula (IVc);X2 = halo; andr, s, t, u = 0-4. Preferred Definitions:    n = 2;    m, o, p = 1;    Ar1, Ar3, Ar9 = benzene-1,4-diyl;    Ar5, Ar7 = 9,9-disubstituted-9H-fluorene-2-yl of formula (IIa); either    R5 = 1-40C alkyl, 1-40C (thio)alkoxy (both linear), 3-40C alkyl, 3-40C (thio)alkoxy (both branched or cyclic), silyl, substituted 1-40C keto group, 2-40C alkoxycarbonyl, 7-40C aryloxycarbonyl, H, -CN, -C(=O)NH2 or -C(=O)-X; or    at least one group R5, R5+ring = mono- or polycyclic, aliphatic or aromatic ring; and    X = (hetero)aromatic ring with 5-60 ring atoms (optionally substituted), halo, -C(=O)-H, isocyano moiety, isocyanate moiety, thiocyanate moiety, thioisocyanate moiety, NH2, OH, NO2, CF3, Cl, Br, F, crosslinkable group and/or (hetero)aryloxy with 5-60 ring atoms.    EXAMPLE - 6,6'-Bis(4-bromophenyl)-9,9'-diphenyl-9H,9'H-3,3'-bicarbazole (2 mmol), N4,N4'-bis(9,9-dimethyl-9H-fluoren-2-yl)biphenyl-4,4'-diamine (2 mmol) and sodium-tert-butoxide (0.577 g) were dissolved in toluene (20 ml). Then the obtained reaction solution was heated to 80 degrees C under inert gas atmosphere and the reaction was started by adding palladium acetate (3.6 mg) and tri-tert-butylphosphine (69 mg) dissolved in toluene (1 ml). Then the reaction mixture was heated for 1 hour to boiling until the solution becomes viscous. Then the polymerization was stopped by adding bromobiphenyl (3 mg) and the reaction solution was heated further for 1 hour to boiling. Then the reaction mixture was worked up to obtain the polymer.