Polish version

Login form

register


Print

H. Galina, M. Walczak

A theoretical model of hyperbranched polymerization involving an ABf monomer.

Part II. The average polymerization degree and dispersity index (in English)

Polimery 2005, No 10, 713



Summary

A generalized theoretical model of hyperbranched polymerization of an ABf monomer was used to calculate the weight average polymerization degree (Pw) and dispersity index (DM) of the resulting hyperbranched polymers. The monomer functionalities were f = 2, 4, or 6. The model derived in Part I of the series and based on the Smoluchowski coagulation equation was used. The monomer functional groups B reacted according to the first shell substitution effect principle. Both, the weight average polymerization degree and dispersity index were found to grow with conversion the faster, the higher was the monomer functionality and the more positive was the substitution effect.


Key words: hyperbranched polymerization, kinetic model, Smoluchowski coagulation equation, substitution effect, functionality of the monomers, weight average polymerization degree, dispersity index


H. Galina, M. Walczak
A theoretical model of hyperbranched polymerization involving an ABf monomer. Part II. The average polymerization degree and dispersity index (in English)