| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Preceramic Polymers; Synthesis, Processing, Modeling, and Derived Ceramics
|
| Presentation Title |
Isoconversional Methods and Kinetic Reaction Models for Cure Modelling of Commercial Pre-ceramic Polymers and their Blends |
| Author(s) |
Zlatomir Apostolov, Elizabeth Heckman, Michael Cinibulk |
| On-Site Speaker (Planned) |
Zlatomir Apostolov |
| Abstract Scope |
Cure activation energies for three commercially available pre-ceramic polymers and their blends were determined through conventional and isoconversional approaches, utilizing the Ozawa, Kissinger, and Friedman methods. Three reaction models were evaluated for modelling the cure kinetics of the investigated systems, and the results of the two most successful (nth Order and Prout-Tompkins autocatalytic) are presented. The activation energies determined from the modelling effort were then compared to those obtained from the dedicated conventional and isoconversional studies. Additionally, the dependence of conversion rates on heating rate and conversion fraction was compared for each polymer and blend, and the resulting trends are presented. |