Patent ID: 7973074

Claim:
Monomeric, oligomeric or polymeric compound corresponding to the following formula (I): in which A represents a polycyclic group optionally substituted by one or more identical or different R groups chosen from alkyl radicals, said polycyclic group comprising two rings chosen from aromatic carbon rings and/or aromatic heterocycles and comprising one group capable of making possible the attachment of a chromophoric group, X 1 and X 2 , which are identical or different, each independently represent a group of formula (II): in which B and D, which are identical or different, each independently represent an aromatic carbon ring or an aromatic heterocycle optionally substituted by one or more R groups; R 1 and R 2 , which are identical or different, each independently represent a group chosen from the hydrogen atom, R groups, the cyano group, the nitro group, halogen atoms and deuterium atoms; b and d are integers from 1 to 100; c is an integer from 1 to 20; e is an integer from 1 to 100; X 1 and/or X 2 are optionally substituted by one or more groups of formula (II) identical to or different from the substituted X 1 or X 2 group; n is an integer from 1 to 1000; a is an integer from 1 to 100; one or more of the hydrogen atoms of the formula (I) can be replaced by a deuterium or fluorine atom, wherein the group capable of making possible the attachment of a chromophoric group is a group where X represents O, S, Se or N—R 3 , R 3 being chosen from the groups resulting from the reaction of a carbonyl group (X═O) with an amine to form an imine functional group; wherein, in the formula (I), the polycyclic group of the A group is a condensed polycyclic group.