Sulfonated copolyimide membranes derived from a novel diamine monomer with pendant benzimidazole groups for fuel cells

Wei Li, Xiaoxia Guo, David Aili, Santiago Martin Fernandez, Qingfeng Li, Jianhua Fang

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Sulfonated polyimides are among the most interesting proton exchange membrane materials with high proton conductivity and good mechanical characteristics. As a major challenge the hydrolytic instability of the polymer backbone is addressed by introducing basic moieties in the polymer main chain. A series of sulfonated copolyimides (SPI) are prepared via random copolymerizatio of 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA) with a new diamine monomer with pendant benzimidazole groups, 2,2'-bis(4-(1H-benzo[d]imidazol-2-yl)phenoxy)benzidine (BIPOB), and a sulfonated diamine monomer 4,4'-bis(4-aminophenoxy)biphenyl-3,3'-disulfonic acid (BAPBDS) at different diamine molar ratios (BAPBDS/BIPOB, 4/1, 6/1, 9/1 and 12/1). With ion exchange capacities in the range of 1.60-2.24 meq g(-1), transparent and ductile membranes are obtained by solution casting. The incorporation of benzimiclazole pendant groups significantly improves the hydrolytic stability as well as the radical oxidative stability of the membranes. In addition, the SPI membranes exhibit high proton conductivities of 0.1 S cm(-1) in the fully hydrated state at 60 degrees C and high elastic modulus and tensile strength. Preliminary fuel cell tests demonstrate the technical feasibility and stability of the materials. (C) 2015 Elsevier B.V. All rights reserved.
Original languageEnglish
JournalJournal of Membrane Science
Volume481
Pages (from-to)44-53
Number of pages10
ISSN0376-7388
DOIs
Publication statusPublished - 2015

Keywords

  • ENGINEERING,
  • POLYMER
  • PROTON-EXCHANGE MEMBRANES
  • POLYMER ELECTROLYTE MEMBRANE
  • POLYIMIDE MEMBRANES
  • WATER STABILITY
  • HYDROLYTIC DEGRADATION
  • CONDUCTING MEMBRANES
  • ACID
  • POLYBENZIMIDAZOLE
  • POLYELECTROLYTES
  • TRANSPORT
  • Sulfonated polyimide
  • Proton exchange membrane fuel cell
  • Radical oxidative stability
  • Hydrolytic stability
  • Amines
  • Fuel cells
  • Ion exchange
  • Ion exchange membranes
  • Mechanical properties
  • Membranes
  • Monomers
  • Oxidation resistance
  • Polyimides
  • Proton conductivity
  • Stability
  • Tensile strength
  • High elastic modulus
  • Ion exchange capacity
  • Mechanical characteristics
  • Proton exchange membranes
  • Sulfonated copolyimide
  • Sulfonated polyimides
  • Proton exchange membrane fuel cells (PEMFC)

Cite this

@article{326fd152ed9f42a5aafa426529b92c5b,
title = "Sulfonated copolyimide membranes derived from a novel diamine monomer with pendant benzimidazole groups for fuel cells",
abstract = "Sulfonated polyimides are among the most interesting proton exchange membrane materials with high proton conductivity and good mechanical characteristics. As a major challenge the hydrolytic instability of the polymer backbone is addressed by introducing basic moieties in the polymer main chain. A series of sulfonated copolyimides (SPI) are prepared via random copolymerizatio of 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA) with a new diamine monomer with pendant benzimidazole groups, 2,2'-bis(4-(1H-benzo[d]imidazol-2-yl)phenoxy)benzidine (BIPOB), and a sulfonated diamine monomer 4,4'-bis(4-aminophenoxy)biphenyl-3,3'-disulfonic acid (BAPBDS) at different diamine molar ratios (BAPBDS/BIPOB, 4/1, 6/1, 9/1 and 12/1). With ion exchange capacities in the range of 1.60-2.24 meq g(-1), transparent and ductile membranes are obtained by solution casting. The incorporation of benzimiclazole pendant groups significantly improves the hydrolytic stability as well as the radical oxidative stability of the membranes. In addition, the SPI membranes exhibit high proton conductivities of 0.1 S cm(-1) in the fully hydrated state at 60 degrees C and high elastic modulus and tensile strength. Preliminary fuel cell tests demonstrate the technical feasibility and stability of the materials. (C) 2015 Elsevier B.V. All rights reserved.",
keywords = "ENGINEERING,, POLYMER, PROTON-EXCHANGE MEMBRANES, POLYMER ELECTROLYTE MEMBRANE, POLYIMIDE MEMBRANES, WATER STABILITY, HYDROLYTIC DEGRADATION, CONDUCTING MEMBRANES, ACID, POLYBENZIMIDAZOLE, POLYELECTROLYTES, TRANSPORT, Sulfonated polyimide, Proton exchange membrane fuel cell, Radical oxidative stability, Hydrolytic stability, Amines, Fuel cells, Ion exchange, Ion exchange membranes, Mechanical properties, Membranes, Monomers, Oxidation resistance, Polyimides, Proton conductivity, Stability, Tensile strength, High elastic modulus, Ion exchange capacity, Mechanical characteristics, Proton exchange membranes, Sulfonated copolyimide, Sulfonated polyimides, Proton exchange membrane fuel cells (PEMFC)",
author = "Wei Li and Xiaoxia Guo and David Aili and Fernandez, {Santiago Martin} and Qingfeng Li and Jianhua Fang",
year = "2015",
doi = "10.1016/j.memsci.2015.01.048",
language = "English",
volume = "481",
pages = "44--53",
journal = "Journal of Membrane Science",
issn = "0376-7388",
publisher = "Elsevier",

}

Sulfonated copolyimide membranes derived from a novel diamine monomer with pendant benzimidazole groups for fuel cells. / Li, Wei; Guo, Xiaoxia; Aili, David; Fernandez, Santiago Martin; Li, Qingfeng; Fang, Jianhua.

In: Journal of Membrane Science, Vol. 481, 2015, p. 44-53.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Sulfonated copolyimide membranes derived from a novel diamine monomer with pendant benzimidazole groups for fuel cells

AU - Li, Wei

AU - Guo, Xiaoxia

AU - Aili, David

AU - Fernandez, Santiago Martin

AU - Li, Qingfeng

AU - Fang, Jianhua

PY - 2015

Y1 - 2015

N2 - Sulfonated polyimides are among the most interesting proton exchange membrane materials with high proton conductivity and good mechanical characteristics. As a major challenge the hydrolytic instability of the polymer backbone is addressed by introducing basic moieties in the polymer main chain. A series of sulfonated copolyimides (SPI) are prepared via random copolymerizatio of 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA) with a new diamine monomer with pendant benzimidazole groups, 2,2'-bis(4-(1H-benzo[d]imidazol-2-yl)phenoxy)benzidine (BIPOB), and a sulfonated diamine monomer 4,4'-bis(4-aminophenoxy)biphenyl-3,3'-disulfonic acid (BAPBDS) at different diamine molar ratios (BAPBDS/BIPOB, 4/1, 6/1, 9/1 and 12/1). With ion exchange capacities in the range of 1.60-2.24 meq g(-1), transparent and ductile membranes are obtained by solution casting. The incorporation of benzimiclazole pendant groups significantly improves the hydrolytic stability as well as the radical oxidative stability of the membranes. In addition, the SPI membranes exhibit high proton conductivities of 0.1 S cm(-1) in the fully hydrated state at 60 degrees C and high elastic modulus and tensile strength. Preliminary fuel cell tests demonstrate the technical feasibility and stability of the materials. (C) 2015 Elsevier B.V. All rights reserved.

AB - Sulfonated polyimides are among the most interesting proton exchange membrane materials with high proton conductivity and good mechanical characteristics. As a major challenge the hydrolytic instability of the polymer backbone is addressed by introducing basic moieties in the polymer main chain. A series of sulfonated copolyimides (SPI) are prepared via random copolymerizatio of 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA) with a new diamine monomer with pendant benzimidazole groups, 2,2'-bis(4-(1H-benzo[d]imidazol-2-yl)phenoxy)benzidine (BIPOB), and a sulfonated diamine monomer 4,4'-bis(4-aminophenoxy)biphenyl-3,3'-disulfonic acid (BAPBDS) at different diamine molar ratios (BAPBDS/BIPOB, 4/1, 6/1, 9/1 and 12/1). With ion exchange capacities in the range of 1.60-2.24 meq g(-1), transparent and ductile membranes are obtained by solution casting. The incorporation of benzimiclazole pendant groups significantly improves the hydrolytic stability as well as the radical oxidative stability of the membranes. In addition, the SPI membranes exhibit high proton conductivities of 0.1 S cm(-1) in the fully hydrated state at 60 degrees C and high elastic modulus and tensile strength. Preliminary fuel cell tests demonstrate the technical feasibility and stability of the materials. (C) 2015 Elsevier B.V. All rights reserved.

KW - ENGINEERING,

KW - POLYMER

KW - PROTON-EXCHANGE MEMBRANES

KW - POLYMER ELECTROLYTE MEMBRANE

KW - POLYIMIDE MEMBRANES

KW - WATER STABILITY

KW - HYDROLYTIC DEGRADATION

KW - CONDUCTING MEMBRANES

KW - ACID

KW - POLYBENZIMIDAZOLE

KW - POLYELECTROLYTES

KW - TRANSPORT

KW - Sulfonated polyimide

KW - Proton exchange membrane fuel cell

KW - Radical oxidative stability

KW - Hydrolytic stability

KW - Amines

KW - Fuel cells

KW - Ion exchange

KW - Ion exchange membranes

KW - Mechanical properties

KW - Membranes

KW - Monomers

KW - Oxidation resistance

KW - Polyimides

KW - Proton conductivity

KW - Stability

KW - Tensile strength

KW - High elastic modulus

KW - Ion exchange capacity

KW - Mechanical characteristics

KW - Proton exchange membranes

KW - Sulfonated copolyimide

KW - Sulfonated polyimides

KW - Proton exchange membrane fuel cells (PEMFC)

U2 - 10.1016/j.memsci.2015.01.048

DO - 10.1016/j.memsci.2015.01.048

M3 - Journal article

VL - 481

SP - 44

EP - 53

JO - Journal of Membrane Science

JF - Journal of Membrane Science

SN - 0376-7388

ER -