Kinetic parameter estimation for the MMA/MA copolymerization system

摘要

The mathematical model for a batch methyl methacrylate (MMA) and methyl acrylate (MA) copolymerization system was simplified by applying the pseudokinetic rate constant method and used for the estimation of parameters for various reaction rate constants. For this, the polymerization experiment was conducted under a variety of reaction conditions and the Levenberg-Marquardt method was employed. The state variables selected for the parameter estimation were the solid content and the number and weight average molecular weights. The validity of the estimated parameters was corroborated by conducting experiments under different reaction conditions and the newly estimated parameter values were found to be superior to the ones reported in the literature. Thus the kinetic parameters estimated in this study may be used to predict the properties of polymer product obtained by solution MMA/MA copolymerization. (C) 2000 John Wiley & Sons, Inc. [References: 17]