IR laser ablative degradation of poly(phenylene ether-sulfone): Deposition of films containing ether, sulfone, sulfoxide and sulfide groups

Pulsed infrared laser-induced ablation of poly(1,4-phenylene ether-sulfone) (PES) results in the extrusion of SO 2, CO and hydrocarbon molecules and allows deposition of dark solid paramagnetic carbonaceous films that were analysed by FTIR, UV, XP, Raman and EPR spectroscopy and by electron microsco...

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Bibliographic Details
Published in:Polymer degradation and stability 2009-02, Vol.94 (2), p.196-200
Main Authors: Blazevska-Gilev, Jadranka, Bastl, Zdeněk, Šubrt, Jan, Stopka, Pavel, Pola, Josef
Format: Article
Language:English
Subjects:
Applied sciences
Chemical reactions and properties
Degradation
Deposition of polymer films
Exact sciences and technology
Laser ablation
Laser-induced degradation
Organic polymers
Physicochemistry of polymers
Poly(1,4-phenylene ether-sulfone)
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Summary:Pulsed infrared laser-induced ablation of poly(1,4-phenylene ether-sulfone) (PES) results in the extrusion of SO 2, CO and hydrocarbon molecules and allows deposition of dark solid paramagnetic carbonaceous films that were analysed by FTIR, UV, XP, Raman and EPR spectroscopy and by electron microscopy and revealed as poor in S and containing CO, SO 2, –SO– and C–S–C units. The films show pronounced conjugation of sp 2-C atoms and their EPR spectra are sensitive function of the presence of molecular oxygen. The laser process differs from the conventional pyrolysis of PES which yields SO 2 and phenol as major volatile products and a carbonaceous char.
ISSN:0141-3910
1873-2321
DOI:10.1016/j.polymdegradstab.2008.11.003