Khanna, Umang and Chanda, Manas (1993) Kinetics of Anhydride Curing of lsophthalic Diglycidyl Ester Using Differential Scanning Calorimetry. In: Journal of Applied Polymer Science, 49 (2). pp. 319-329.
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The cure reaction of a model diglycidyl ester, bis- (2,3-epoxypropyl) -1,3-benzenedicarboxylate, with hexahydrophthalic anhydride as the curing agent and benzyldimethylamine as the catalyst, was studied by differential scanning calorimetry using an isothermal approach over the temperature range 100-135°C. The results indicate that the cure reaction is autocatalytic in nature and does not follow simple nth-order kinetics. A semiempirical equation for autocatalytic systems containing two rate constants and two reaction orders, viz., 0.5 and 1.5, provided a good phenomenological description of the cure kinetics up to the point of vitrification. With the inclusion of a diffusion factor into this model, it was, however, possible to predict with precision the cure kinetics over the whole range of conversion covering both pre- and postvitrification stages and over the entire temperature range of 100-135°C employed for isothermal curing.
|Item Type:||Journal Article|
|Additional Information:||The copyright belongs to John Wiley & Sons, Inc.|
|Department/Centre:||Division of Mechanical Sciences > Chemical Engineering|
|Date Deposited:||20 Mar 2006|
|Last Modified:||19 Sep 2010 04:24|
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