Polyimide ionomer containing superacid groups

Jumpei Saito; Manabu Tanaka; Michiko Hirai; Masato Nanasawa; Kenji Miyatake; Masahiro Watanabe

doi:10.1002/pat.1924

Polyimide ionomer containing superacid groups

Jumpei Saito, Manabu Tanaka, Michiko Hirai, Masato Nanasawa, Kenji Miyatake^*, Masahiro Watanabe

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

A novel sulfonated polyimide (SPI) copolymer containing pendant perfluorosulfonic acid groups was synthesized and their properties were investigated. 2-(2,4-Diaminophenoxy)-1,1,2,2-tetrafluoroethanesulfonic acid (5) was synthesized from 2,4-diaminophenol dihydrochloride via acetylation, perfluoroalkylation, and sulfonation. Polycondensation of 1,4,5,8-naphthalenetetracarboxylic dianhydride, monomer 5, and 3,5-bis(4-aminophenyl)-1H-1,2,4-triazole gave the title polyimide 6. The obtained polyimide copolymer 6 was soluble in polar organic solvents and its chemical structure and ion exchange capacity were confirmed by ¹H and ¹⁹F NMR spectra. The copolymer 6 was thermally stable up to ca. 180°C and showed 6.6×10^-4Scm^-1 of the proton conductivity at 80°C in water.

Original language	English
Pages (from-to)	1305-1310
Number of pages	6
Journal	Polymers for Advanced Technologies
Volume	22
Issue number	8
DOIs	https://doi.org/10.1002/pat.1924
Publication status	Published - 2011 Aug
Externally published	Yes

Keywords

Fuel cells
Ionomers
Polyimides
Proton conduction
Superacid groups

ASJC Scopus subject areas

Polymers and Plastics

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10.1002/pat.1924

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title = "Polyimide ionomer containing superacid groups",

abstract = "A novel sulfonated polyimide (SPI) copolymer containing pendant perfluorosulfonic acid groups was synthesized and their properties were investigated. 2-(2,4-Diaminophenoxy)-1,1,2,2-tetrafluoroethanesulfonic acid (5) was synthesized from 2,4-diaminophenol dihydrochloride via acetylation, perfluoroalkylation, and sulfonation. Polycondensation of 1,4,5,8-naphthalenetetracarboxylic dianhydride, monomer 5, and 3,5-bis(4-aminophenyl)-1H-1,2,4-triazole gave the title polyimide 6. The obtained polyimide copolymer 6 was soluble in polar organic solvents and its chemical structure and ion exchange capacity were confirmed by 1H and 19F NMR spectra. The copolymer 6 was thermally stable up to ca. 180°C and showed 6.6×10-4Scm-1 of the proton conductivity at 80°C in water.",

keywords = "Fuel cells, Ionomers, Polyimides, Proton conduction, Superacid groups",

author = "Jumpei Saito and Manabu Tanaka and Michiko Hirai and Masato Nanasawa and Kenji Miyatake and Masahiro Watanabe",

year = "2011",

month = aug,

doi = "10.1002/pat.1924",

language = "English",

volume = "22",

pages = "1305--1310",

journal = "Polymers for Advanced Technologies",

issn = "1042-7147",

publisher = "John Wiley and Sons Ltd",

number = "8",

}

TY - JOUR

T1 - Polyimide ionomer containing superacid groups

AU - Saito, Jumpei

AU - Tanaka, Manabu

AU - Hirai, Michiko

AU - Nanasawa, Masato

AU - Miyatake, Kenji

AU - Watanabe, Masahiro

PY - 2011/8

Y1 - 2011/8

N2 - A novel sulfonated polyimide (SPI) copolymer containing pendant perfluorosulfonic acid groups was synthesized and their properties were investigated. 2-(2,4-Diaminophenoxy)-1,1,2,2-tetrafluoroethanesulfonic acid (5) was synthesized from 2,4-diaminophenol dihydrochloride via acetylation, perfluoroalkylation, and sulfonation. Polycondensation of 1,4,5,8-naphthalenetetracarboxylic dianhydride, monomer 5, and 3,5-bis(4-aminophenyl)-1H-1,2,4-triazole gave the title polyimide 6. The obtained polyimide copolymer 6 was soluble in polar organic solvents and its chemical structure and ion exchange capacity were confirmed by 1H and 19F NMR spectra. The copolymer 6 was thermally stable up to ca. 180°C and showed 6.6×10-4Scm-1 of the proton conductivity at 80°C in water.

AB - A novel sulfonated polyimide (SPI) copolymer containing pendant perfluorosulfonic acid groups was synthesized and their properties were investigated. 2-(2,4-Diaminophenoxy)-1,1,2,2-tetrafluoroethanesulfonic acid (5) was synthesized from 2,4-diaminophenol dihydrochloride via acetylation, perfluoroalkylation, and sulfonation. Polycondensation of 1,4,5,8-naphthalenetetracarboxylic dianhydride, monomer 5, and 3,5-bis(4-aminophenyl)-1H-1,2,4-triazole gave the title polyimide 6. The obtained polyimide copolymer 6 was soluble in polar organic solvents and its chemical structure and ion exchange capacity were confirmed by 1H and 19F NMR spectra. The copolymer 6 was thermally stable up to ca. 180°C and showed 6.6×10-4Scm-1 of the proton conductivity at 80°C in water.

KW - Fuel cells

KW - Ionomers

KW - Polyimides

KW - Proton conduction

KW - Superacid groups

UR - http://www.scopus.com/inward/record.url?scp=79960847688&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79960847688&partnerID=8YFLogxK

U2 - 10.1002/pat.1924

DO - 10.1002/pat.1924

M3 - Article

AN - SCOPUS:79960847688

SN - 1042-7147

VL - 22

SP - 1305

EP - 1310

JO - Polymers for Advanced Technologies

JF - Polymers for Advanced Technologies

IS - 8

ER -

Polyimide ionomer containing superacid groups

Abstract

Keywords

ASJC Scopus subject areas

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