The curing mechanisms and kinetics of diglycidyl ether of bisphenol A with diethylenetriamine as the curing agent and different amounts of organic montmorillonite were examined with isothermal and dynamic scanning calorimetry. The modified Avrami equation was used to calculate the activation energy and reaction orders in the isothermal experiment. A single peak was observed in each dynamic scan. The curing mechanism and kinetics of the curing reaction were also analyzed by two kinds of methods-Kissinger and Flynn-Wall-Ozawa. The results obtained from those methods under dynamic measurement agreed with those obtained from the modified Avrami equation. (C) 2003 Wiley Periodicals, Inc.