SPEEK/PPSU-based organic-inorganic membranes: proton conducting electrolytes in anhydrous and wet environments

M. Luisa Di Vona; Alessandra D'Epifanio; Debora Marani; Marcella Trombetta; Enrico Traversa; Silvia Licoccia

doi:10.1016/j.memsci.2005.12.003

SPEEK/PPSU-based organic-inorganic membranes: proton conducting electrolytes in anhydrous and wet environments

M. Luisa Di Vona^*, Alessandra D'Epifanio, Debora Marani, Marcella Trombetta, Enrico Traversa, Silvia Licoccia

^*Corresponding author for this work

Physical Science and Engineering

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

51 Scopus citations

Abstract

A telechelic organic-inorganic polymer (SiPPSU) where -SiPh(OH)₂ groups are covalently linked to the polymeric chain of polyphenylsulfone (PPSU) was prepared and characterized. The polymer was sulfonated up to a degree of sulfonation (DS) equal to 2 (SiSPPSU), then used to prepare blends with sulfonated polyetheretherketone (SPEEK) having DS = 0.9 in 5 and 10 wt.% concentration. The synthesized polymers and the blends were characterized by ATR/FT-IR spectroscopy. Membranes were prepared with these materials and their proton conductivity was measured using electrochemical impedance spectroscopy (EIS). The formation of the blends substantially altered the physicochemical characteristics of SPEEK: the membrane prepared with the blend at the concentration of 5 wt.% exhibited high and stable conductivity values at 120 °C: both when dry (σ = 6.1 × 10^-3 S/cm) and wet conditions (σ = 6.4 × 10^-2 S/cm for a 50% water uptake), hence, being suitable for application as electrolyte in intermediate temperature polymer electrolyte membrane fuel cells (PEMFCs).

Original language	English (US)
Pages (from-to)	186-191
Number of pages	6
Journal	Journal of Membrane Science
Volume	279
Issue number	1-2
DOIs	https://doi.org/10.1016/j.memsci.2005.12.003
State	Published - Aug 1 2006

Keywords

Blend
Organic-inorganic telechelic polymer
Polyetheretherketone (PEEK)
Polyphenylsulfone (PPSU)
Proton exchange membrane

ASJC Scopus subject areas

Filtration and Separation
Polymers and Plastics

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title = "SPEEK/PPSU-based organic-inorganic membranes: proton conducting electrolytes in anhydrous and wet environments",

abstract = "A telechelic organic-inorganic polymer (SiPPSU) where -SiPh(OH)2 groups are covalently linked to the polymeric chain of polyphenylsulfone (PPSU) was prepared and characterized. The polymer was sulfonated up to a degree of sulfonation (DS) equal to 2 (SiSPPSU), then used to prepare blends with sulfonated polyetheretherketone (SPEEK) having DS = 0.9 in 5 and 10 wt.% concentration. The synthesized polymers and the blends were characterized by ATR/FT-IR spectroscopy. Membranes were prepared with these materials and their proton conductivity was measured using electrochemical impedance spectroscopy (EIS). The formation of the blends substantially altered the physicochemical characteristics of SPEEK: the membrane prepared with the blend at the concentration of 5 wt.% exhibited high and stable conductivity values at 120 °C: both when dry (σ = 6.1 × 10-3 S/cm) and wet conditions (σ = 6.4 × 10-2 S/cm for a 50% water uptake), hence, being suitable for application as electrolyte in intermediate temperature polymer electrolyte membrane fuel cells (PEMFCs).",

keywords = "Blend, Organic-inorganic telechelic polymer, Polyetheretherketone (PEEK), Polyphenylsulfone (PPSU), Proton exchange membrane",

author = "{Di Vona}, {M. Luisa} and Alessandra D'Epifanio and Debora Marani and Marcella Trombetta and Enrico Traversa and Silvia Licoccia",

year = "2006",

month = aug,

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doi = "10.1016/j.memsci.2005.12.003",

language = "English (US)",

volume = "279",

pages = "186--191",

journal = "Journal of Membrane Science",

issn = "0376-7388",

publisher = "Elsevier",

number = "1-2",

}

SPEEK/PPSU-based organic-inorganic membranes : proton conducting electrolytes in anhydrous and wet environments. / Di Vona, M. Luisa; D'Epifanio, Alessandra; Marani, Debora; Trombetta, Marcella; Traversa, Enrico; Licoccia, Silvia.

In: Journal of Membrane Science, Vol. 279, No. 1-2, 01.08.2006, p. 186-191.

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

TY - JOUR

T1 - SPEEK/PPSU-based organic-inorganic membranes

T2 - proton conducting electrolytes in anhydrous and wet environments

AU - Di Vona, M. Luisa

AU - D'Epifanio, Alessandra

AU - Marani, Debora

AU - Trombetta, Marcella

AU - Traversa, Enrico

AU - Licoccia, Silvia

PY - 2006/8/1

Y1 - 2006/8/1

N2 - A telechelic organic-inorganic polymer (SiPPSU) where -SiPh(OH)2 groups are covalently linked to the polymeric chain of polyphenylsulfone (PPSU) was prepared and characterized. The polymer was sulfonated up to a degree of sulfonation (DS) equal to 2 (SiSPPSU), then used to prepare blends with sulfonated polyetheretherketone (SPEEK) having DS = 0.9 in 5 and 10 wt.% concentration. The synthesized polymers and the blends were characterized by ATR/FT-IR spectroscopy. Membranes were prepared with these materials and their proton conductivity was measured using electrochemical impedance spectroscopy (EIS). The formation of the blends substantially altered the physicochemical characteristics of SPEEK: the membrane prepared with the blend at the concentration of 5 wt.% exhibited high and stable conductivity values at 120 °C: both when dry (σ = 6.1 × 10-3 S/cm) and wet conditions (σ = 6.4 × 10-2 S/cm for a 50% water uptake), hence, being suitable for application as electrolyte in intermediate temperature polymer electrolyte membrane fuel cells (PEMFCs).

AB - A telechelic organic-inorganic polymer (SiPPSU) where -SiPh(OH)2 groups are covalently linked to the polymeric chain of polyphenylsulfone (PPSU) was prepared and characterized. The polymer was sulfonated up to a degree of sulfonation (DS) equal to 2 (SiSPPSU), then used to prepare blends with sulfonated polyetheretherketone (SPEEK) having DS = 0.9 in 5 and 10 wt.% concentration. The synthesized polymers and the blends were characterized by ATR/FT-IR spectroscopy. Membranes were prepared with these materials and their proton conductivity was measured using electrochemical impedance spectroscopy (EIS). The formation of the blends substantially altered the physicochemical characteristics of SPEEK: the membrane prepared with the blend at the concentration of 5 wt.% exhibited high and stable conductivity values at 120 °C: both when dry (σ = 6.1 × 10-3 S/cm) and wet conditions (σ = 6.4 × 10-2 S/cm for a 50% water uptake), hence, being suitable for application as electrolyte in intermediate temperature polymer electrolyte membrane fuel cells (PEMFCs).

KW - Blend

KW - Organic-inorganic telechelic polymer

KW - Polyetheretherketone (PEEK)

KW - Polyphenylsulfone (PPSU)

KW - Proton exchange membrane

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DO - 10.1016/j.memsci.2005.12.003

M3 - Article

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EP - 191

JO - Journal of Membrane Science

JF - Journal of Membrane Science

SN - 0376-7388

IS - 1-2

ER -

SPEEK/PPSU-based organic-inorganic membranes: proton conducting electrolytes in anhydrous and wet environments

Abstract

Keywords

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