Monomers, polymers incorporating said monomers and their use in organic electroluminescent devices

A monomer of general formula A—(Q—S)p where:

• A=aromatic or heteroaromatic nucleus,
• 1≦p≦6
• Q=carbon-based or silicon-based divalent radical, corresponding respectively to the general formulae:
• (CR1R2)n where R1 and R2 H, alkyl or alkenyl containing between 1 and 4 carbon atoms and n is between 4 and 24, and
• [(O—Si(R1R2)]n where R1 and R2=H, alkyl or alkenyl containing between 1 and 4 carbon atoms and n is between 3 and 24
• S=solvating segment consisting of an aliphatic chain containing at least one polar heteroatom, S being selected from the group consisting of:
• a polyether of general formula:
• —[OCH2CH(R)]rOR′ or —[OCH(R)CH2]rOR′
• where r is between 1 and 50
• R=H or alkyl containing from 1 to 6 carbon atoms R′=alkyl, alkenyl, aryl, arylalkyl or alkenylaryl containing from 1 to 30 carbon atoms
• a polyamine corresponding to the general formula:
• —[N(R″)CH2CH(R)]rN(R″)R′
• or —[OCH(R)CH2]rN(R″)R′ in which:
• r is between 1 and 50
• R and R″=H or alkyl containing 1 to 6 carbon atoms
• R′=alkyl, alkenyl, aryl, arylalkyl or alkenylaryl containing from 1 to 30 carbon atoms.