Thermal degradation of poly(p-phenylenebenzobiaoxazole) and poly(p-phenylenediamine terephthalamide) fibres

Authors
Bourbigot, S Flambard, X Duquesne, S
Citation
S. Bourbigot et al., Thermal degradation of poly(p-phenylenebenzobiaoxazole) and poly(p-phenylenediamine terephthalamide) fibres, POLYM INT, 50(1), 2001, pp. 157-164
Citations number
25
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER INTERNATIONAL
ISSN journal
09598103 → ACNP
Volume
50
Issue
1
Year of publication
2001
Pages
157 - 164
Database
ISI
SICI code
0959-8103(200101)50:1<157:TDOPAP>2.0.ZU;2-C
Abstract
This study investigates the thermal stability of poly(p-phenylenediamine-te rephtalamide) (PPT) and poly(p-phenylenebenzobisoxazole) (PBO) fibres. Exce llent behaviour of PBO is shown in comparison to that of PPT. The thermal s tability (under pyrolytic or thermo-oxidative conditions) of PBO is 150 deg reesC higher than that of PPT. Moreover, the strong influence of oxygen, wh ich plays the role of an initiator of degradation, on the degradation of fi bres is shown. Using the invariant kinetic parameter (IKP) method, it is sh own that the degradation rate of PBO is strongly reduced in comparison with that of PPT. It provides a simulation of the 'fuel flow' able to feed the flames, which can explain the high fire performance of PBO compared to PPT. (C) 2001 Society of Chemical Industry.