Electronic Resource
Bognor Regis [u.a.]
:
Wiley-Blackwell
Journal of Polymer Science Part A: Polymer Chemistry
30 (1992), S. 1247-1259
ISSN:
0887-624X
Keywords:
polyarylethersulfone
;
polyethersulfone
;
HTA
;
oscillations
;
chemiluminescence
;
XPS
;
oxidation
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Chemiluminescence in conjunction with x-ray photoelectron spectroscopic surface analysis has been used to elucidate the thermooxidation of polyarylethersulfone HTA film between 85 and 110°C. Oscillations have been observed in chemiluminescence at different wavelengths and in the concentration of newly identified sulfine intermediates. A reaction mechanism is proposed to account for the chemiluminescence and product behaviors. This mechanism features parallel intramolecular and intermolecular pathways branching from a common sulfinyl sulfonate intermediate; each branch produces different emittering species. Oscillating behavior appears to be general for polyarylsulfone films.
Additional Material:
10 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pola.1992.080300703
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