2001
DOI: 10.1590/s0100-40422001000300003
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Fotodegradação de polímeros clorados irradiados com a luz síncrotron - I. Emissão de gases

Abstract: Recebido em 3/1/00; aceito em 26/10/00 PHOTODEGRADATION OF CHLORINATED POLYMERS IRRADIATED WITH SYNCHROTRON LIGHT. Chlorinated polymers (PVC, PVDC and E-CTFE) were irradiated with white light produced at the Brazilian Synchrotron Light Source (LNLS). The emitted gases were analyzed by mass spectrometry. The spectra were dominated by peaks related to hydrochloric acid, HCl, and chlorine ( 35 Cl). The measured HCl intensity is used to evaluate the sensitivity of the polymers over a broad energy range. PVDC showe… Show more

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“…In complement to the XPS data the DBD treated copolymer film shows a distinctive increase in the intensities of the Cl À ions, additionally showing a decreasing trend with depth of probing. Elimination of HCl from PVC under UV radiation has been identified previously [21,22]. Hence, it could be argued that elimination of HCl due to the DBD treatment of the PVC copolymer might lead to the detection of more Cl À ions.…”
Section: Static Sims Studiesmentioning
confidence: 79%
“…In complement to the XPS data the DBD treated copolymer film shows a distinctive increase in the intensities of the Cl À ions, additionally showing a decreasing trend with depth of probing. Elimination of HCl from PVC under UV radiation has been identified previously [21,22]. Hence, it could be argued that elimination of HCl due to the DBD treatment of the PVC copolymer might lead to the detection of more Cl À ions.…”
Section: Static Sims Studiesmentioning
confidence: 79%