Curing fluoroelastomers using curing agents of formula, R1N═CR2R3, wherein R1 is H; R2 is selected from the group consisting of H, NH2, and NR4R5; R3 is selected from the group consisting of Ph, SO2H, NR6R7, 2-pyridine, and CH2CONH2; R4 is H; R5 is selected from the group consisting of Ph, NH2, and CN; R6 is selected from the group consisting of H, NHPh, CCONH2, C1 to C8 linear alkyl group, and C1 to C8 branched alkyl group; and R7 is selected from the group consisting of Ph, COOC(CH3)3, NH2, CH2COOH, CSNH2, CNHNH3+Cl−, p-phenylCN, COPh,