English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/15450
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Proton-Conducting Polymers Based on Benzimidazoles and Sulfonated Benzimidazoles

AutorAsensio, Juan Antonio; Borrós, Salvador; Gómez-Romero, P.
Palabras clavePolybenzimidazoles
Sulfonated polybenzimidazoleI
Phosphoric acid doped
Materials for polymer fuel cells
Polyelectrolytes
Thermal properties
Proton protonconducting
FT-IR
Fecha de publicación4-jul-2002
EditorJohn Wiley & Sons
CitaciónJournal of Polymer Science Part A: Polymer Chemistry 40(21): 3703-3710 (2002)
ResumenA sulfonated derivative of polybenzimidazole is reported, and its properties are analyzed in comparison with related polybenzimidazole proton-conducting materials. Poly(2,5-benzimidazole), poly(m-phenylenebenzobisimidazole), and poly[m-(5- sulfo)-phenylenebenzobisimidazole] were prepared by condensation of the corresponding monomers in polyphosphoric acid. Several adducts of these polymers with phosphoric acid were prepared. The resulting materials were characterized by chemical analysis, Fourier transform infrared spectroscopy, and thermogravimetric analysis; also, the dc conductivity of doped and undoped derivatives was measured. Similar to what has been observed for the commercial polybenzimidazole polymer (also examined here for comparison), the title polymers exhibit high thermal stability. Furthermore, their doping with phosphoric acid leads to a significant increase in conductivity from less than 10211 Scm21 for the undoped polymers to 1024 Scm21 (both at roomtemperature) for their acid-loaded derivativesm
Versión del editorhttp://dx.doi.org/10.1002/pola.10451
URIhttp://hdl.handle.net/10261/15450
DOI10.1002/pola.10451
ISSN0887-624X
Aparece en las colecciones: (ICMAB) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.