Hefeng Li
Beijing University of Chemical Technology
Curing (chemistry)Nuclear chemistryFourier transform infrared spectroscopyEpoxyMaterials scienceHexamethylene diisocyanateIsocyanateDifferential scanning calorimetryThermogravimetryThermal stability
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#1Hefeng Li (Huada: Beijing University of Chemical Technology)
#2Cong Liu (Huada: Beijing University of Chemical Technology)
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
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Catalyst-free synthesis in three kinds of isocyanate-blocked imidazole compound was successfully achieved by chemically connecting 2-ethyl-4-methylimidazole (2E4MI) with hexamethylene diisocyanate (HDI), trimethylhexamethylene diisocyanate (TMHDI) or 4,4′-diphenylmethane diisocyanate (MDI), which were tested as the latent hardeners for epoxy (EP) resins. The chemical structures of the synthesized HDI-2E4MI, TMHDI-2E4MI and MDI-2E4MI were identified with Fourier transform infrared spectroscope (F...
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