Controlled Radical Photopolymerization (CRP2) and 3D printing using novel Mn(II), Fe(II) and Co(II) complexes

• Grant number: 24/03026-5
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: October 15, 2024
• End date: October 14, 2025
• Field of knowledge: Physical Sciences and Mathematics - Chemistry
• Principal Investigator: Beatriz Eleutério Goi Carvalho
• Grantee: Camila Bignardi
• Supervisor: Jacques Lalevee
• Host Institution: Faculdade de Ciências e Tecnologia (FCT). Universidade Estadual Paulista (UNESP). Campus de Presidente Prudente. Presidente Prudente , SP, Brazil
• Institution abroad: Université de Haute-Alsace, France
• Associated to the scholarship: 22/16571-6 - Organometallic complexes of Mn (II), Fe (II) and Co (II) as CRP2 redox photocatalysts., BP.DR

Abstract

Mn, (II), Fe(II) and Co(II) complexes will be synthesized to catalyze Controlled Radical Photopolymerization (CRP2). The proposal extends into three stages, which are completely interconnected in the development process. Initially, the attention will be directed to the Mn, (II), Fe(II) and Co(II) complexes non-symmetric NHCs ligands synthesis. The Mn, (II), Fe(II) and Co(II) complexes will be characterized by FTIR, UV-Vis, Cyclic Voltammetry, EPR, elemental analysis and mass spectrometry. The second stage will be dedicated to the evaluation of the photochemical properties of the Mn(II), Fe(II) and Co(II) NHC complexes. Consequently, the high reactivity of these compounds will be demonstrated through some direct laser write experiments, where high-spatial-resolution 3D patterns will be obtained. Therefore, this research paves the way for the development of new organometallic photocatalysts in CRP2 as well as their applications in 3D printing.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BIGNARDI, CAMILA; PESQUEIRA, NARALYNE M.; SHIMIZO, YASMIN M.; MACHADO, ANTONIO E. H.; ARAUJO, DIESLEY M. S.; NASCIMENTO, OTACIRO R.; CARVALHO, VALDEMIRO P.; LALEVEE, JACQUES; GOI, BEATRIZ E.. Manganese(II)-PyNHC Complex as Visible-Light-Triggered Photocatalyst for Photopolymerization of Acrylates and 3D Printing. ACS APPLIED POLYMER MATERIALS, v. 7, n. 11, p. 11-pg., 2025-06-04. (21/11873-1, 21/13128-1, 24/03026-5, 21/11741-8, 22/16571-6)