A new strategy to prepare high luminescent films containing polypropylene and polyamide doped with Eu3+ β-diketonate complex

PARRA, D.F.MARCHINI, L.G.FELINTO, M.C.F.C.BRITO, H.F.2024-06-172024-06-172024PARRA, D.F.; MARCHINI, L.G.; FELINTO, M.C.F.C.; BRITO, H.F. A new strategy to prepare high luminescent films containing polypropylene and polyamide doped with Eu3+ β-diketonate complex. <b>Optical Materials</b>, v. 152, p. 1-8, 2024. DOI: <a href="https://dx.doi.org/10.1016/j.optmat.2024.115396">10.1016/j.optmat.2024.115396</a>. Disponível em: https://repositorio.ipen.br/handle/123456789/48114.0925-3467https://repositorio.ipen.br/handle/123456789/48114A new strategy for obtaining stable luminescent polypropylene (PP) one polymer among the most consumed plastic materials is reported. PP is a polymer of nonpolar olefinic macrochains, preventing direct doping with rare earth complexes. The synthesis of the polyamide (PA) polymer doped with hydrated complex [Eu (tta)3(H2O)2] and its encapsulation in PP polymer produced a luminescent material stable under processing conditions of the plastic films as never been seen before. The preparation of the Eu3+ β-diketonate complex and polyamide solution produced a high luminescent material. The processed polymeric films doped in different concentration fo the europium complex were characterized by infrared spectroscopy (FTIR), X-ray diffractometry (XRD), emission spectroscopy, and thermogravimetry (TG). The emission spectra of the luminescent doped polymeric films exhibited the characteristic narrow bands arising from the 5 D0 → 7 FJ transitions (J = 0–4) of the Eu3+ ion. The values of the Ω2 and Ω4 experimental intensity parameters were calculated and discussed. The high values of the intrinsic emission quantum yields (QEu Eu) of the PA:[Eu(tta)3(H2O)2] systems suggest that these films can be applied as optical markers as well as the encapsulated systems of the (PP) as PP/PA:(x%)Eu(tta)3 films (x = 1, 5, and 10 %). The stability was promoted via PP encapsulation resulting in a luminescent plastic film with high stability under processing.1-8openAccesspolyamidespolypropylenepolymerseuropiumketonesluminescenceA new strategy to prepare high luminescent films containing polypropylene and polyamide doped with Eu3+ β-diketonate complexArtigo de periódico15210.1016/j.optmat.2024.115396https://orcid.org/0000-0002-7626-880Xhttps://orcid.org/0000-0001-7028-087868.574.14