Polyesters active in nonlinear optics and materials containing them, optical device containing them and processes for the manufacture of these compounds and materials

摘要

Polyester active in nonlinear optics, characterised in that it comprises at least one unit of the following formula: <IMAGE> In which: - R1 and R2, which are identical or different, denote an aromatic or saturated or unsaturated alkyl radical, - R3 denotes a linear or cyclic aliphatic, aromatic or arylaliphatic hydrocarbon radical, - Y denotes a group containing a radical with delocalised electrons exhibiting an electron-accepting group (A). Application in optoelectronics.