(Co)polymers based on vinyl monomers and their use in electroluminescent devices

摘要

Novel (co)polymers with 0.5-100 (pref. 0.5-60)mol.% of fluorescent styrenic units of formula (I) (sic) and/or fluorescent acrylic units of formula -CH-C(R2)(C(O)-L2)- (II) (sic) opt. together with 0-99.5 (pref. 40-99.5)mol.% of vinyl units of formula -CH-C(R3)(M)- (III) (sic) are claimed. In the formulae, R1-3 = H or 1-6C alkyl; M = CN or 1-30C alkyl- alkoxy- or (di)alkylamino-carbonyl (each opt. substd. by OH or 1-6C alkoxycarbonyl) or phenyl, naphthyl, anthracenyl, pyridyl or carbazolyl (each opt. substd. by halogen, OH, silyl, 1-30C alkyl, 6-15C aryl, 1-30C alkoxy, 1-30C alkoxycarbonyl, 1-30C acyloxy or 1-30C alkylcarbonyl); and L1-2 = photo-luminescent residue. Also claimed are (i) prepn. of the copolymers by (2) prodn. of suitable monomers (I) and/or (II) by reaction in presence of a base of a halomethyl styrene and/or an acid, acid halide or ester with an OH-, COOH- or NH-functionised fluorescent dye; followed by (b) (co)polymerisation of (I) and/or (II), opt. (b) (co)polymerisation of (I) and/or (II), opt. with (III); and (ii) electroluminescent devices using the (co)polymers.