Studies on the Thermal Degradation of Poly (p-phenylene benzobisoxazole)

Thermal decomposition of poly(p-phenylene benzobisoxazole) (PBO) has been studied between room temperature and 1123 K. Two types of material (regular and high-modulus) were studied, which yielded almost equivalent results. Thermogravimetry and differential thermal analysis allowed establishing the m...

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Detalles Bibliográficos
Autores: Tamargo Martínez, Katia, Villar Rodil, Silvia, Paredes Nachón, Juan Ignacio, Martínez Alonso, Amelia, Díez Tascón, Juan Manuel
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2003
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/415126
Acceso en línea:http://hdl.handle.net/10261/415126
https://api.elsevier.com/content/abstract/scopus_id/0142216971
Access Level:acceso abierto
Palabra clave:http://metadata.un.org/sdg/7
http://metadata.un.org/sdg/9
Ensure access to affordable, reliable, sustainable and modern energy for all
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
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spelling Studies on the Thermal Degradation of Poly (p-phenylene benzobisoxazole)Tamargo Martínez, KatiaVillar Rodil, SilviaParedes Nachón, Juan IgnacioMartínez Alonso, AmeliaDíez Tascón, Juan Manuelhttp://metadata.un.org/sdg/7http://metadata.un.org/sdg/9Ensure access to affordable, reliable, sustainable and modern energy for allBuild resilient infrastructure, promote inclusive and sustainable industrialization and foster innovationThermal decomposition of poly(p-phenylene benzobisoxazole) (PBO) has been studied between room temperature and 1123 K. Two types of material (regular and high-modulus) were studied, which yielded almost equivalent results. Thermogravimetry and differential thermal analysis allowed establishing the main stages of the pyrolytic degradation of the material. On the basis of the thermal analysis results, samples were decomposed at several controlled temperatures and characterized by elemental analysis, infrared spectroscopy, X-ray diffraction, atomic force microscopy, and scanning tunneling microscopy. At temperatures below 933 K the polymer retains its original conformation and becomes stabilized by enhancement of its crystallinity. The decomposition takes place in a single step and the main changes occur within a very narrow temperature interval (983-993 K). Formation of polyaramides as intermediates in the decomposition process was detected. These amide bonds subsequently degrade by homolytic breaking, yielding nitriles. The final carbonaceous residue is rich in nitrogen and retains a certain degree of anisotropy, a fact that was explained by the conservation of crystallinity at an intermediate decomposition stage.Grateful recognition of support given by the 3rd PRI of Asturias for this research (Project PB-EXP01-06) is made.Peer reviewedAmerican Chemical SocietyPrincipado de AsturiasVillar Rodil, Silvia [0000-0002-5832-9971]Paredes Nachón, Juan Ignacio [0000-0002-0044-9153]Martínez Alonso, Amelia [0000-0002-7183-0859]Díez Tascón, Juan Manuel [0000-0001-9219-7266]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262003info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/415126https://api.elsevier.com/content/abstract/scopus_id/0142216971reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésChemistry of Materialshttps://doi.org/10.1021/cm034336uSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4151262026-05-22T06:33:51Z
dc.title.none.fl_str_mv Studies on the Thermal Degradation of Poly (p-phenylene benzobisoxazole)
title Studies on the Thermal Degradation of Poly (p-phenylene benzobisoxazole)
spellingShingle Studies on the Thermal Degradation of Poly (p-phenylene benzobisoxazole)
Tamargo Martínez, Katia
http://metadata.un.org/sdg/7
http://metadata.un.org/sdg/9
Ensure access to affordable, reliable, sustainable and modern energy for all
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
title_short Studies on the Thermal Degradation of Poly (p-phenylene benzobisoxazole)
title_full Studies on the Thermal Degradation of Poly (p-phenylene benzobisoxazole)
title_fullStr Studies on the Thermal Degradation of Poly (p-phenylene benzobisoxazole)
title_full_unstemmed Studies on the Thermal Degradation of Poly (p-phenylene benzobisoxazole)
title_sort Studies on the Thermal Degradation of Poly (p-phenylene benzobisoxazole)
dc.creator.none.fl_str_mv Tamargo Martínez, Katia
Villar Rodil, Silvia
Paredes Nachón, Juan Ignacio
Martínez Alonso, Amelia
Díez Tascón, Juan Manuel
author Tamargo Martínez, Katia
author_facet Tamargo Martínez, Katia
Villar Rodil, Silvia
Paredes Nachón, Juan Ignacio
Martínez Alonso, Amelia
Díez Tascón, Juan Manuel
author_role author
author2 Villar Rodil, Silvia
Paredes Nachón, Juan Ignacio
Martínez Alonso, Amelia
Díez Tascón, Juan Manuel
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Principado de Asturias
Villar Rodil, Silvia [0000-0002-5832-9971]
Paredes Nachón, Juan Ignacio [0000-0002-0044-9153]
Martínez Alonso, Amelia [0000-0002-7183-0859]
Díez Tascón, Juan Manuel [0000-0001-9219-7266]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv http://metadata.un.org/sdg/7
http://metadata.un.org/sdg/9
Ensure access to affordable, reliable, sustainable and modern energy for all
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
topic http://metadata.un.org/sdg/7
http://metadata.un.org/sdg/9
Ensure access to affordable, reliable, sustainable and modern energy for all
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
description Thermal decomposition of poly(p-phenylene benzobisoxazole) (PBO) has been studied between room temperature and 1123 K. Two types of material (regular and high-modulus) were studied, which yielded almost equivalent results. Thermogravimetry and differential thermal analysis allowed establishing the main stages of the pyrolytic degradation of the material. On the basis of the thermal analysis results, samples were decomposed at several controlled temperatures and characterized by elemental analysis, infrared spectroscopy, X-ray diffraction, atomic force microscopy, and scanning tunneling microscopy. At temperatures below 933 K the polymer retains its original conformation and becomes stabilized by enhancement of its crystallinity. The decomposition takes place in a single step and the main changes occur within a very narrow temperature interval (983-993 K). Formation of polyaramides as intermediates in the decomposition process was detected. These amide bonds subsequently degrade by homolytic breaking, yielding nitriles. The final carbonaceous residue is rich in nitrogen and retains a certain degree of anisotropy, a fact that was explained by the conservation of crystallinity at an intermediate decomposition stage.
publishDate 2003
dc.date.none.fl_str_mv 2003
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/415126
https://api.elsevier.com/content/abstract/scopus_id/0142216971
url http://hdl.handle.net/10261/415126
https://api.elsevier.com/content/abstract/scopus_id/0142216971
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Chemistry of Materials
https://doi.org/10.1021/cm034336u
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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