Modification of polymers using supercritical carbon dioxide (scCO(2)) impregnation technology is an advantageous method for imparting desirable properties into a new polymer formulation without the architecture of the material being affected. Methyl methacrylate (MMA) and acrylic complex of europium [Eu(TTA)(3)AA] were impregnated on polycarbonate (PC) in the scCO(2) phase. There was an increase in the amount of grafted Eu(TTA)(3)AA complex up to 6 h of impregnation, reaching 0.24% of grafting. For longer times of grafting, it was observed a small decrease in the amount of Eu(TTA)(3)AA complex in the PC polymer. On the other hand, the total amount of grafted MMA/Eu(TTA)(3)AA monomers increased for up to 10 h of impregnation. The PC-g-MMA/Eu(TTA)(3)AA copolymers showed appreciable luminescence emission at room temperature. Furthermore, the SEM images show that there was no formation of agglomerates in the structure of the copolymers over the grafting process, suggesting a excellent distribution of Eu(TTA)(3)AA complex in the copolymer matrix.