Keywords
hyperbranched polymers
step polymerization
statistical method
kinetic method
modeling
step polymerization
statistical method
kinetic method
modeling
Abstract
Two methods of modeling polymerization processes: statistical and kinetic ones were used to calculate molecular parameters: number- and weight average polymerization degree of hyperbranched polymers, formed in the step polymerization of symmetric monomer of AB2 type. Calculations were carried out for monomers reacting with the first shell substitution effect, i.e. after the “first” group B has reacted, the reactivity of the “second” group changed. Unlike for the results of modeling polymerization systems involving other monomers of functionality higher than 2, the weight average polymerization degrees calculated using the two methods were not different, irrespectively of the magnitude of substitution effect.