OPTICAL 3D MEMORY COMPRISING MULTILAYER PARTICLES THAT COMPRISE A PHOTOACTIVE MONOMER BEARING A PHOTOISOMERIZABLE GROUP

摘要

The invention relates to a core-shell-type multilayer particle comprising at least one layer B that comprises at least one photoactive monomer bearing a photoisomerizable chromophore and a rigid shell A. The photoactive monomer has the following formula (I): (I) in which: X denotes H or CH<SUB>3</SUB>-; G denotes =O-C(=O)-, -C(=O)-O-, a substituted or unsubstituted phenyl group, or else -NR-C(=O)-, NR being bonded to L and R being H or a C<SUB>1</SUB>-C<SUB>10</SUB> alkyl group; L denotes a spacer group; CR denotes a photoisomerizable chromophore. It is possible to use the multilayer particle of the invention to achieve optical storage of 2D data.