Sulfonated polynaphthalimides with benzimidazole pendant groups

Yolanda Álvarez-Gallego; Bastian Ruffmann; Vasco Silva; Hugo Silva; Angel E. Lozano; José G. de la Campa; Suzana Pereira Nunes; Javier de Abajo

doi:10.1016/j.polymer.2008.06.048

Sulfonated polynaphthalimides with benzimidazole pendant groups

Yolanda Álvarez-Gallego^*, Bastian Ruffmann, Vasco Silva, Hugo Silva, Angel E. Lozano, José G. de la Campa, Suzana Pereira Nunes, Javier de Abajo

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

A series of new polyimides bearing simultaneously sulfonic acid groups and benzimidazole rings in different proportions have been synthesised by one pot high temperature polycondensation. The composition of the copolymers, as well as the distribution of the ionic sites along the polymer chain, has been changed systematically in order to study their relation with polymer properties. The incorporation of sulfonic side groups in the structure improves the solubility in polar organic solvents. In turn, the presence of sulfonic acid moieties impairs thermal resistance. Membranes based on the synthesised polyimides were prepared by solution casting and their water uptake as well as proton conductivity were determined.

Original language	English (US)
Pages (from-to)	3875-3883
Number of pages	9
Journal	Polymer
Volume	49
Issue number	18
DOIs	https://doi.org/10.1016/j.polymer.2008.06.048
State	Published - Aug 26 2008
Externally published	Yes

Keywords

Benzimidazole
Ion-exchange membranes
Sulfonated polyimides

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/j.polymer.2008.06.048

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title = "Sulfonated polynaphthalimides with benzimidazole pendant groups",

abstract = "A series of new polyimides bearing simultaneously sulfonic acid groups and benzimidazole rings in different proportions have been synthesised by one pot high temperature polycondensation. The composition of the copolymers, as well as the distribution of the ionic sites along the polymer chain, has been changed systematically in order to study their relation with polymer properties. The incorporation of sulfonic side groups in the structure improves the solubility in polar organic solvents. In turn, the presence of sulfonic acid moieties impairs thermal resistance. Membranes based on the synthesised polyimides were prepared by solution casting and their water uptake as well as proton conductivity were determined.",

keywords = "Benzimidazole, Ion-exchange membranes, Sulfonated polyimides",

author = "Yolanda {\'A}lvarez-Gallego and Bastian Ruffmann and Vasco Silva and Hugo Silva and Lozano, {Angel E.} and {de la Campa}, {Jos{\'e} G.} and Nunes, {Suzana Pereira} and {de Abajo}, Javier",

note = "Funding Information: Financial support provided by the {\textquoteleft}{\textquoteleft}HGF-Strategiefonds'{\textquoteright} project {\textquoteleft}{\textquoteleft}Membranes and Electrodes for DMFC'{\textquoteright} (Germany) and the Spanish Ministry of Education and Science (MAT2007-62392) is gratefully acknowledged.",

year = "2008",

month = aug,

day = "26",

doi = "10.1016/j.polymer.2008.06.048",

language = "English (US)",

volume = "49",

pages = "3875--3883",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Sulfonated polynaphthalimides with benzimidazole pendant groups

AU - Álvarez-Gallego, Yolanda

AU - Ruffmann, Bastian

AU - Silva, Vasco

AU - Silva, Hugo

AU - Lozano, Angel E.

AU - de la Campa, José G.

AU - Nunes, Suzana Pereira

AU - de Abajo, Javier

N1 - Funding Information: Financial support provided by the ‘‘HGF-Strategiefonds'’ project ‘‘Membranes and Electrodes for DMFC'’ (Germany) and the Spanish Ministry of Education and Science (MAT2007-62392) is gratefully acknowledged.

PY - 2008/8/26

Y1 - 2008/8/26

N2 - A series of new polyimides bearing simultaneously sulfonic acid groups and benzimidazole rings in different proportions have been synthesised by one pot high temperature polycondensation. The composition of the copolymers, as well as the distribution of the ionic sites along the polymer chain, has been changed systematically in order to study their relation with polymer properties. The incorporation of sulfonic side groups in the structure improves the solubility in polar organic solvents. In turn, the presence of sulfonic acid moieties impairs thermal resistance. Membranes based on the synthesised polyimides were prepared by solution casting and their water uptake as well as proton conductivity were determined.

AB - A series of new polyimides bearing simultaneously sulfonic acid groups and benzimidazole rings in different proportions have been synthesised by one pot high temperature polycondensation. The composition of the copolymers, as well as the distribution of the ionic sites along the polymer chain, has been changed systematically in order to study their relation with polymer properties. The incorporation of sulfonic side groups in the structure improves the solubility in polar organic solvents. In turn, the presence of sulfonic acid moieties impairs thermal resistance. Membranes based on the synthesised polyimides were prepared by solution casting and their water uptake as well as proton conductivity were determined.

KW - Benzimidazole

KW - Ion-exchange membranes

KW - Sulfonated polyimides

UR - http://www.scopus.com/inward/record.url?scp=48949101493&partnerID=8YFLogxK

U2 - 10.1016/j.polymer.2008.06.048

DO - 10.1016/j.polymer.2008.06.048

M3 - Article

AN - SCOPUS:48949101493

SN - 0032-3861

VL - 49

SP - 3875

EP - 3883

JO - Polymer

JF - Polymer

IS - 18

ER -

Sulfonated polynaphthalimides with benzimidazole pendant groups

Abstract

Keywords

ASJC Scopus subject areas

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