Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/15450
Share/Export:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Title

Proton-Conducting Polymers Based on Benzimidazoles and Sulfonated Benzimidazoles

AuthorsAsensio, Juan Antonio; Borrós, Salvador; Gómez-Romero, P. CSIC ORCID
KeywordsPolybenzimidazoles
Sulfonated polybenzimidazoleI
Phosphoric acid doped
Materials for polymer fuel cells
Polyelectrolytes
Thermal properties
Proton protonconducting
FT-IR
Issue Date4-Jul-2002
PublisherJohn Wiley & Sons
CitationJournal of Polymer Science Part A: Polymer Chemistry 40(21): 3703-3710 (2002)
AbstractA 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
Publisher version (URL)http://dx.doi.org/10.1002/pola.10451
URIhttp://hdl.handle.net/10261/15450
DOI10.1002/pola.10451
ISSN0887-624X
Appears in Collections:(ICMAB) Artículos

Files in This Item:
File Description SizeFormat
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work

SCOPUSTM   
Citations

260
checked on May 12, 2022

WEB OF SCIENCETM
Citations

239
checked on May 14, 2022

Page view(s)

361
checked on May 15, 2022

Download(s)

101
checked on May 15, 2022

Google ScholarTM

Check

Altmetric

Dimensions


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.