Mechanism of radiation-induced degradation of bisphenol-A polycarbonate
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Sociedad Química de México
2001
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| _version_ | 1876427948365447168 |
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| author | Rafael Navarro González |
| author_facet | Rafael Navarro González |
| contents | Mechanism of radiation-induced degradation of bisphenol-A polycarbonate Rafael Navarro González Roustam Aliev Multidisciplinaria (Ciencias Naturales y Exactas) GC MS FTIR radiolysis Polycarbonate We report here a new approach to study the mechanism ofradiation-induced degradation of polymeric materials based on thecombined analysis of radiolytic gases, and pyrolytic products frompreirradiated polymers by flash pyrolysis coupled to gas chromatographyFourier transformed infrared spectroscopy mass spectrometrywith electron impact mode (GC-FTIR-MS). Bisphenol-Apolycarbonate (PC) was studied in the dose range from 0.125 to 1.0MGy. PC irradiation was accompanied by the preferential release ofcarbon monoxide followed by minor production of hydrogen, carbondioxide and methane. Pyrolyzed PC releases mainly carbon dioxide,methane, benzene, toluene, phenol and 4-methyl-phenol. On the basisof these results we suggest two main pathways of PC radiationinducedscission with equal probabilities: (a) carbonate bond and (b)aliphatic-aromatic bond ruptures. 2001 artículo científico 1870-249X https://www.redalyc.org/articulo.oa?id=47545407 en http://www.redalyc.org/revista.oa?id=475 Journal of the Mexican Chemical Society application/pdf Sociedad Química de México Journal of the Mexican Chemical Society (México) Num.4 Vol.45 |
| format | Artículo científico |
| id | redalyc_47545407 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Sociedad Química de México |
| spellingShingle | Mechanism of radiation-induced degradation of bisphenol-A polycarbonate Rafael Navarro González Multidisciplinaria (Ciencias Naturales y Exactas) GC MS FTIR radiolysis Polycarbonate Mechanism of radiation-induced degradation of bisphenol-A polycarbonate Rafael Navarro González Roustam Aliev Multidisciplinaria (Ciencias Naturales y Exactas) GC MS FTIR radiolysis Polycarbonate We report here a new approach to study the mechanism ofradiation-induced degradation of polymeric materials based on thecombined analysis of radiolytic gases, and pyrolytic products frompreirradiated polymers by flash pyrolysis coupled to gas chromatographyFourier transformed infrared spectroscopy mass spectrometrywith electron impact mode (GC-FTIR-MS). Bisphenol-Apolycarbonate (PC) was studied in the dose range from 0.125 to 1.0MGy. PC irradiation was accompanied by the preferential release ofcarbon monoxide followed by minor production of hydrogen, carbondioxide and methane. Pyrolyzed PC releases mainly carbon dioxide,methane, benzene, toluene, phenol and 4-methyl-phenol. On the basisof these results we suggest two main pathways of PC radiationinducedscission with equal probabilities: (a) carbonate bond and (b)aliphatic-aromatic bond ruptures. 2001 artículo científico 1870-249X https://www.redalyc.org/articulo.oa?id=47545407 en http://www.redalyc.org/revista.oa?id=475 Journal of the Mexican Chemical Society application/pdf Sociedad Química de México Journal of the Mexican Chemical Society (México) Num.4 Vol.45 |
| title | Mechanism of radiation-induced degradation of bisphenol-A polycarbonate |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) GC MS FTIR radiolysis Polycarbonate |
| url | https://www.redalyc.org/articulo.oa?id=47545407 |