Premium
Determination of the kinetic parameters for the polymerization of a polyurethane using an improved method of differential scanning calorimetry
Author(s) -
HernándezSánchez F.,
VeraGraziano R.
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070460402
Subject(s) - differential scanning calorimetry , activation energy , polyurethane , kinetic energy , arrhenius equation , polymerization , materials science , thermodynamics , polymer chemistry , order of reaction , kinetics , chemistry , composite material , polymer , reaction rate constant , physics , quantum mechanics
Abstract The kinetic parameters for the polymerization reactions of two polyurethane systems were determined by using an improved method of differential scanning calorymetry (DSC). The calculated activation energy, reaction order, and Arrhenius prefactor show good correlation with the experimental results. The method used here shows several improvements as respects to other DSC methods: the three kinetic parameters can be calculated directly; it is more accurate than other DSC methods; and it requires only one heating rate, during the calorimetric experiments, to determine the activation energy.