NOVELTY - Polymer (A) (comprising at least 1 mol.% of a first repeating unit of binaphthyl compounds (I) and at least 1 mol.% of a second repeating unit that is same or different as (I)) is new.    USE - (A) and the blend are useful in organic electronic devices such as polymeric light emitting diode diodes(PLEDs), organic integrated circuits (O-ICs), organic field-effect transistors (O-FETs), organic thin film transistors (O-TFTs), organic solar cells (O-SCS), organic field-quench devices (O-FQDs), organic light-emitting-transistors (O-LETs) or organic laser diodes (O-lasers) (claimed).    ADVANTAGE - (A) has improved solubility and efficiency when used in a polymer organic light diode.    DETAILED DESCRIPTION - Polymer (A) (comprising at least 1 mol.% of a first repeating unit of binaphthyl compounds of formula (I) and at least 1 mol.% of a second repeating unit that is same or different as (I)) is new.    R = H, 1-40C alkyl, branched or cyclic 3-40C alkyl (substituted with R1 and one or more non-adjacent C-atom is replaced with N-R1, O, S, O-CO-O, CO-O, -CR1=CR1 or -C?=C-, provided that the heteroatom is not directly bound at the naphthyl unit and in that one or more H is replaced with F, Cl, Br, I or CN) or (hetero)aromatic ring system having 5-40 aromatic ring atom (optionally substituted with R1) (where simultaneously both R can together form a further ring system, provided that at least one of the both R is not equal to H);    X = -CR1=CR1-, -C?=C- or N-Ar;    Y1 = bivalent, (hetero)aromatic ring system having 5-40 aromatic ring atom (optionally substituted with R1);    R1 = H, F, Cl, Br, I, CN, N(R2)2, Si(R2)3, B(R2)2, 1-40C alkyl, 1-40C alkoxy, branched or cyclic 3-40C alkyl or alkoxy (where one or more non adjacent C atom is replaced with N-R2, O, S, O-CO-O, CO-O, -CR1=CR1- or -C?=C- and one or more H is replaced with F, Cl, Br, I or CN) or (hetero)aryl or aryloxy with 5-40 aromatic ring atom (substituted with one or more non-aromatic R1 and two or more R1 together forms a ring system);    R2 = H or aliphatic or aromatic 1-20C hydrocarbon;    Ar = monovalent, (hetero)aromatic ring system having 5-40 aromatic ring atom (optionally substituted with R1);    n, p = 0-1;    m = 0-4;    o =0-2; and    broken lines = linkage in the polymer.    INDEPENDENT CLAIMS are also included for:    (1) use of bifunctional monomer compounds of formula (II) for preparing polymers;    (2) mixture (blend) comprising (A) with further polymers, oligomers, dendrites or low molecular substances;    (3) a solution and a formulation comprising (A) or the blend in one or more solvents; and    (4) an organic electronic device comprising one or more active layers containing (A) or the blend.    A = C-C and/or C-N-connecting copolymers, Cl, Br, I, O-tosylate, O-triflate, O-SO2R2, B(OR2)2 or Sn(R2)3 (where two or more R2 together forms a ring system).