RT Journal Article
T1 Paramagnetic epoxy resin
A1 Vázquez Barreiro, Eva Carolina
A1 Fraga López, Francisco
A1 Jover Ramos, Aida
A1 Meijide del Río, Francisco Ángel
A1 Rodríguez Núñez, Eugenio Anselmo
A1 Vázquez Tato, José
K1 Thermosetting resins
K1 Hemin
K1 Epoxy resin
K1 Magnetic susceptibilit
AB This work illustrates that macrocycles can be used as crosslinking agents for curing epoxy resins, provided thatthey have appropriate organic functionalities. As macrocycles can complex metal ions in their structure, this curing reactionallows for the introduction of that metal ion into the resin network. As a result, some characteristic physical properties of themetallomacrocycle could be transferred to the new material. The bisphenol A diglycidyl ether (BADGE, n = 0) and hemin(a protoporphyrin IX containing the Fe(III) ion, and an additional chloride ligand) have been chosen. The new material hasbeen characterized by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), Fourier Transform Infrared(FT-IR), Nuclear Magnetic Resonance (NMR), Transmission Electron Microscopy (TEM), and magnetic susceptibilitymeasurements). Fe(III) remains in the high-spin state during the curing process and, consequently, the final material exhibitsthe magnetic characteristics of hemin. The loss of the chlorine atom ligand during the cure of the resin allows that Fe(III)can act as Lewis acid, catalyzing the crosslinking reactions. At high BADGE n = 0/hemin ratios, the formation of ether andester bonds occurs simultaneously during the process.
PB Budapest University of Technology
YR 2017
FD 2017
LK http://hdl.handle.net/10347/22748
UL http://hdl.handle.net/10347/22748
LA eng
NO Barreiro, E. V., López, F. F., Jover, A., Meijide, F., Rodríguez, E., & Tato, J. V. (2017). Paramagnetic epoxy resin. eXPRESS Polymer Letters, 11(1), 60-72
NO The authors thank the Ministerio de Ciencia y Tecnología, Spain, Project MAT2010-61721 for financial support. ECV also thanks Dr. Senén Paz and GAIRESA for a scholarship
DS Minerva
RD 4 may 2026