The synergetic effect of catalytic systems in 2,4-tolylene diisocyanate reactions with macrodiols: II. A reaction model with varying catalysts molar ratios and general approach

The model of polyaddition reaction of 2,4-tolylene diisocyanate with macrodiols catalysed by catalytic system with catalysts molar ratios in catalysts complexes K:L as 2:1 (K2L) and 3:1 (K3L) (where K is the tin organic catalyst and L is the tertiary amine) has been developed. Also the analysis of the model based on KL with K3L catalytic complex mixtures has been done to compare to experimental data obtained previously. Results obtained show that application of the model to the above mentioned catalyst system gives the best correlation with experimental data. The mathematical generalization for a whole set of possible catalysts complexes compositions has then been carried out.