Kinetic Analysis for Polycondensation of ABgType Monomers

Abstract

Abstract: This article studied the kinetics of the polycondensation of AB_gmonomers(where Aand Bdenote different sorts of functional groups which can react with each other, and g is the number of Bfunctional groups in a monomer). The molecular weight distribution function and the number-and weight-average molecular weights had been derived, which are in agreement with those given by Flory using statistical approach. Numerical results show that the more the Bfunctional groups in a monomer, the wider the molecular weight distribution of the resulting hyperbranched polymer. The polydispersity increases with increasing the conversion of Agroups, and increases very fast when the polycondensation approaches completion. This conclusion is qualitatively in agreement with experimental data reported by Turner and coworkers.

Key words: Hyperbranched polymers, Polycondensation, Kinetics, AB_g monomers

CLC Number:

O631

TrendMD:

ZHOU Zhi-Ping, YAN De-Yue . Kinetic Analysis for Polycondensation of AB_gType Monomers[J]. Chem. J. Chinese Universities, 1999, 20(12): 1978.

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Kinetic Analysis for Polycondensation of AB_gType Monomers

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