The curing process of dendritic polymer PAMAM with bis-phenol A epoxy resin was investigated using isothermal differential scanning calorimetry（DSC）,the mechanism of this reaction was autocatalytic.The data of two reaction rate constants k1,k2 and reaction orders m,n were obtained from Kamal equation.The overall reaction order m+n was between 2.07 and 2.29,the apparent activation energies of E1 and E2 were 59.79 kJ/mol and 56.51 kJ/mol, respectively.The reaction entered into a diffusion controlled stage at the conversion of 50%,experimental data and theoretic curve had deviation at this time.The reaction conversion,at which the deviation occurred,decreased with lowering curing temperature.
