SYNTHESIS AND CHARACTERIZATION OF SULFONATED POLYBENZIMIDAZOLE - A HIGHLY CONDUCTING PROTON-EXCHANGE POLYMER

Authors
GLIPA X ELHADDAD M JONES DJ ROZIERE J
Citation
X. Glipa et al., SYNTHESIS AND CHARACTERIZATION OF SULFONATED POLYBENZIMIDAZOLE - A HIGHLY CONDUCTING PROTON-EXCHANGE POLYMER, Solid state ionics, 97(1-4), 1997, pp. 323-331
Citations number
17
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
97
Issue
1-4
Year of publication
1997
Pages
323 - 331
Database
ISI
SICI code
0167-2738(1997)97:1-4<323:SACOSP>2.0.ZU;2-O
Abstract
Grafting of sulfonated aryl groups on to polybenzimidazole, PBI, leads to a proton conducting polymer. The synthetic route allows close cont rol of the degree of sulfonation, and a range of samples have been pre pared with degrees of sulfonation up to 75% of the available sites. Su lfonation increases the conductivity from ca. 10(-4) S cm(-1) in non-m odified PBI to > 10(-2) S cm(-1) at room temperature for highly sulfon ated samples. The dependence of the conductivity both on the degree of sulfonation and on the conditions of membrane preparation are discuss ed.