An appropriate kinetic law that governs some important conditions of the reaction process for dehydrated castormonoglyceride modified alkyd resin has been developed. A kinetic experiment was conducted following a standardprocedure. The classical third order conversion rate model was utilized in determining the rate parameters while theviscosity-conversion model suggested by the free-volume theory was applied for the viscosity kinetics studies. Thekinetic model considered for this study adequately predicts the reaction progress even beyond the actual gelationpoint. The effects of the system parameters on both the predicted yields and the corresponding conversion rates weredocumented in a well-designed sampling space implemented by statistical screening optimization paradigm. Theeffects of system parameters on the reaction rates further investigated based on Arrhenius equation detect a heavymass transfer resistance during the esterification process. A detailed analysis of the response reveals a deviationfrom linear first order kinetics and possible transition to second and higher order kinetics in the later stages of theesterification reaction.
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