Abstract
AbstractThe rate constants for the uncatalyzed and catalyzed polyaddition reactions of 2,4‐tolylene diisocyanate with poly(ethylene maleate) and poly(ethylene adipate) in dimethyl sulphoxide, acetone, ethyl acetate, dioxane, benzene, and toluene have been determined by a chemical method. Tri(tributyltin)isocyanate, triethylamine, and lead naphthenate were used as catalysts. An increase of the rates of the uncatalyzed and catalyzed reactions with increase of the dielectric constant of the solvent was found. For the catalyzed reaction a decrease of the effect of solvent polarity on the reaction rate was observed as compared to the uncatalyzed reaction.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
