Produção Nacional
Synthesis and characterization of polyurethane and samarium(III) oxide and holmium(III) oxide composites
2023; Associação Brasileira de Polímeros; Volume: 33; Issue: 4 Linguagem: Inglês
10.1590/0104-1428.20230023
ISSN1984-7386
AutoresLucas Repecka Alves, Giovanni Miraveti Carriello, Guilherme Manassés Pegoraro, Henrique Solowej Medeiros Lopes, Thais Agrella Janolla, Airton Natanael Coelho Dias, Giovanni Pimenta Mambrini, Maira de Lourdes Rezende, Aparecido Júnior de Menezes,
Tópico(s)Catalysis and Oxidation Reactions
ResumoPolyurethanes, versatile polymers extensively explored across industries, can be augmented by incorporating complementary materials like lanthanides. This research presents a novel approach, employing a one-shot synthesis to create polyurethane-lanthanide composites using polyol, isocyanate, samarium, and holmium oxides. FTIR and Raman spectroscopy affirmed successful polyurethane matrix formation, while XRD unveiled distinct phases in lanthanide-loaded matrices versus soft, low-crystallinity polyurethane in control foam. Optical microscopy displayed morphology alterations due to samarium and holmium. Thermogravimetric analysis revealed heightened composite thermal stability compared to control foam. Looking ahead, these outcomes prompt further exploration of polyurethane-lanthanide composites, particularly in harnessing property changes for diverse applications.
Referência(s)