Premium
Monitoring the reaction progress of a high‐performance phenylethynyl‐terminated poly(etherimide). Part I: Cure kinetics modeling
Author(s) -
Bullions Todd A.,
McGrath J. E.,
Loos A. C.
Publication year - 2002
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.11012
Subject(s) - kinetics , chemical kinetics , materials science , differential scanning calorimetry , thermodynamics , isothermal process , first order , order of reaction , reaction rate constant , mathematics , physics , quantum mechanics
The cure kinetics of a phenylethynyl‐terminated poly(etherimide) are examined via differential scanning calorimetry (DSC) measurements. Isothermal holds at temperatures ranging from 325°C to 360°C provided the necessary information to develop reaction kinetics models using both first‐order reaction kinetics and combination reaction kinetics. The first‐order reaction kinetics model works well for quick estimates of degree of cure versus time over the experimental temperature range. However, significantly more accurate predictions of degree of cure versus time were provided by the combination reaction kinetics model. The lack of accuracy in the first order model is due to the fact that the reaction cannot be described by a simple order. The experimental procedures followed to obtain the cure kinetics data and the construction of the models from this data are described; the predictions of these models are compared with the experimental results.