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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Abstract
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 |
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Publication: | Journal of Applied Polymer Science |
Publisher: | John Wiley & Sons, Inc. |
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 |
URI: | http://eprints.iisc.ac.in/id/eprint/6100 |
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