Sulfonated block polyimide copolymers as a proton-conductive membrane

Naoki Asano; Kenji Miyatake; Masahiro Watanabe

doi:10.1002/pola.21361

Sulfonated block polyimide copolymers as a proton-conductive membrane

Naoki Asano, Kenji Miyatake, Masahiro Watanabe^*

^*Corresponding author for this work

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

65 Citations (Scopus)

Abstract

The synthesis of a series of block sulfonate polyimide (SPI) ionomers to control hydrophilic and hydrophobic phase separation for the improvement of the proton conductivity at low humidity conditions, is presented. The new block SPI-B ionomer membranes showed chemical stability comparable to that of SPI-R equivalent. The block/block copolymer SPI-B150/150 membrane, containing long block segments in both the hydrophilic and the hydrophobic components, showed the highest proton conductivity. STEM observations confirmed widespread and well-connected hydrophilic domains, which proves the high proton-transporting properties of the SPI-B150/150.

Original language	English
Pages (from-to)	2744-2748
Number of pages	5
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	44
Issue number	8
DOIs	https://doi.org/10.1002/pola.21361
Publication status	Published - 2006 Apr 15
Externally published	Yes

Keywords

Block copolymers
Conducting polymers
Fuel cells
Ionomers
Membranes
Polyimides

ASJC Scopus subject areas

Polymers and Plastics
Organic Chemistry
Materials Chemistry

Access to Document

10.1002/pola.21361

Cite this

@article{b8c65e023bf04444bb616ac03a4f8a48,

title = "Sulfonated block polyimide copolymers as a proton-conductive membrane",

abstract = "The synthesis of a series of block sulfonate polyimide (SPI) ionomers to control hydrophilic and hydrophobic phase separation for the improvement of the proton conductivity at low humidity conditions, is presented. The new block SPI-B ionomer membranes showed chemical stability comparable to that of SPI-R equivalent. The block/block copolymer SPI-B150/150 membrane, containing long block segments in both the hydrophilic and the hydrophobic components, showed the highest proton conductivity. STEM observations confirmed widespread and well-connected hydrophilic domains, which proves the high proton-transporting properties of the SPI-B150/150.",

keywords = "Block copolymers, Conducting polymers, Fuel cells, Ionomers, Membranes, Polyimides",

author = "Naoki Asano and Kenji Miyatake and Masahiro Watanabe",

year = "2006",

month = apr,

day = "15",

doi = "10.1002/pola.21361",

language = "English",

volume = "44",

pages = "2744--2748",

journal = "Journal of Polymer Science, Part A: Polymer Chemistry",

issn = "0887-624X",

publisher = "John Wiley and Sons Inc.",

number = "8",

}

TY - JOUR

T1 - Sulfonated block polyimide copolymers as a proton-conductive membrane

AU - Asano, Naoki

AU - Miyatake, Kenji

AU - Watanabe, Masahiro

PY - 2006/4/15

Y1 - 2006/4/15

N2 - The synthesis of a series of block sulfonate polyimide (SPI) ionomers to control hydrophilic and hydrophobic phase separation for the improvement of the proton conductivity at low humidity conditions, is presented. The new block SPI-B ionomer membranes showed chemical stability comparable to that of SPI-R equivalent. The block/block copolymer SPI-B150/150 membrane, containing long block segments in both the hydrophilic and the hydrophobic components, showed the highest proton conductivity. STEM observations confirmed widespread and well-connected hydrophilic domains, which proves the high proton-transporting properties of the SPI-B150/150.

AB - The synthesis of a series of block sulfonate polyimide (SPI) ionomers to control hydrophilic and hydrophobic phase separation for the improvement of the proton conductivity at low humidity conditions, is presented. The new block SPI-B ionomer membranes showed chemical stability comparable to that of SPI-R equivalent. The block/block copolymer SPI-B150/150 membrane, containing long block segments in both the hydrophilic and the hydrophobic components, showed the highest proton conductivity. STEM observations confirmed widespread and well-connected hydrophilic domains, which proves the high proton-transporting properties of the SPI-B150/150.

KW - Block copolymers

KW - Conducting polymers

KW - Fuel cells

KW - Ionomers

KW - Membranes

KW - Polyimides

UR - http://www.scopus.com/inward/record.url?scp=33646190495&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33646190495&partnerID=8YFLogxK

U2 - 10.1002/pola.21361

DO - 10.1002/pola.21361

M3 - Article

AN - SCOPUS:33646190495

SN - 0887-624X

VL - 44

SP - 2744

EP - 2748

JO - Journal of Polymer Science, Part A: Polymer Chemistry

JF - Journal of Polymer Science, Part A: Polymer Chemistry

IS - 8

ER -

Sulfonated block polyimide copolymers as a proton-conductive membrane

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this