Henriques, Ruan R. published the artcileDual Role of Magnetic Ionic Liquids as Curing Agents of Epoxy Resin and Microwave-Absorbing Additives, Synthetic Route of 79917-90-1, the publication is ACS Applied Polymer Materials (2022), 4(2), 1207-1217, database is CAplus.
The dual role of phosphonium- and imidazolium-based ionic liquids (ILs) combined with FeCl4 counter anions as hardeners for epoxy resin (ER) and additives for improving the microwave-absorbing properties was studied. The influence of the chem. nature of the cation on the curing process of ER was evaluated by rheometric and differential scanning calorimetry (DSC) anal. No significant curing process was observed for the ER-based systems until 7 days of storage at room temperature DSC anal. under the dynamic mode was carried out at different heating rates to evaluate the best curing protocol and the kinetic parameters. Phosphonium-based ILs promoted faster curing rate and lower activation energy of the epoxy system, higher cross-link d. observed by dynamic mech. anal., and better thermal stability. Moreover, ER cured with phosphonium ILs presented good microwave-absorbing properties, with min. reflection loss values of -13.5 dB (at 9.5 GHz) and -11.5 dB (at 14.5 GHz), corresponding to more than 90% of electromagnetic attenuation. ER cured with these magnetic ILs can be used as promising microwave-absorbing materials in both X-band (8-12 GHz) and Ku-band (12-18 GHz).
ACS Applied Polymer Materials published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, Synthetic Route of 79917-90-1.
Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem