Author(s)

Garima Tripathi, Deepak Srivastava

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The degradation of the epoxy system was studied for the prepared six blend samples with the incorporation of 0 wt% - 25 wt% carboxyl terminated butadiene acrylonitrile (CTBN) copolymer, on a dynamic basis using Thermo gravimetric analysis (TGA) technique under a nitrogen atmosphere. The blends were prepared by physical mixing and were cured with diamine. The degradation of each sample followed second-order degradation kinetics, which was calculated by Coats-Redfern equation using best-fit analysis. This was further confirmed by linear regression analysis. The validity of data was checked by t-test statistical analysis. From this value of reaction order, activation energy (E), and pre-exponential factor (Z) were calculated. It was found that the activation energy increased with the addition of liquid elastomer.

Diglycidyl Ether of Bis-Phenol-A, Cycloaliphatic Epoxy Resin, Carboxyl Terminated Butadiene Acrylonotrile (CTBN) Copolymer, Thermogravimetric Analysis (TGA), Degradation Kinetics

Tripathi, G. and Srivastava, D. (2011) Study on the Effect of Carboxyl Terminated Butadiene Acrylonitrile (CTBN) Copolymer Concentration on the Decomposition Kinetics Parameters of Blends of Glycidyl Epoxy and Non-Glycidyl Epoxy Resin. International Journal of Organic Chemistry, 1, 105-112. doi: 10.4236/ijoc.2011.13016.