화학공학소재연구정보센터
Journal of Applied Polymer Science, Vol.63, No.5, 635-641, 1997
Kinetic and Thermodynamic Studies of an Epoxy System Diglycidyl Ether of Bisphenol-A/1,2 Diamine Cyclohexane
The curing reaction of a system consisting of a purified diglycidyl ether of bisphenol-A (BADGE, n = 0) and 1,2 diamine cyclohexane (DCH) was studied with a differential scanning calorimeter. The objective of this article was twofold : a kinetic study from which parameters such as reaction orders, rate constants, and activation energies were determined; and a thermodynamic study where values of enthalpy (Delta H-#), entropy (Delta S-#), and Gibbs free energy (Delta G(#)) changes were calculated. This second study showed that an n-order path reaction mechanism was more favored than the autocatalyzed mechanism above 338 K. This fact was also checked when plotting rate constant ratio against temperature.