Fotodegradacao de polimeros clorados irradiados con a luz sincrotron-I. Emissao de gases



Document title: Fotodegradacao de polimeros clorados irradiados con a luz sincrotron-I. Emissao de gases
Journal: Quimica nova
Database: PERIÓDICA
System number: 000196199
ISSN: 0100-4042
Authors: 1

Institutions: 1Universidade Federal do Rio de Janeiro, Instituto de Quimica, Rio de Janeiro. Brasil
2Universidade Federal do Rio de Janeiro, Instituto de Macromoleculas, Rio de Janeiro. Brasil
Year:
Season: May-Jun
Volumen: 24
Number: 3
Pages: 303-306
Country: Brasil
Language: Portugués
Document type: Artículo
Approach: Experimental, descriptivo
English abstract 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 (35Cl). The measured HCl intensity is used to evaluate the sensitivity of the polymers over a broad energy range. PVDC showed the greatest light sensitivity as compared to PVC and E-CTFE
Disciplines: Química,
Física y astronomía
Keyword: Química de polímeros,
Física atómica y molecular,
Polímeros,
Polímeros clorados,
Fotodegradación,
Luz sincrotrón,
PVC,
PVDC,
Radiación
Keyword: Chemistry,
Physics and astronomy,
Polymer chemistry,
Atomic and molecular physics,
Polymers,
Chlorinated polymers,
Photodegradation,
Synchrotron light,
PVC,
PVDC,
Radiation
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