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Synthesis and Properties of Polyimide Ionomers Containing Sulfoalkoxy and Fluorenyl Groups by Tomohiro Yasuda; Kenji Miyatake; Michiko Hirai; Masato Nanasawa; Masahiro Watanabe is a Materials Science article available to read on EtoBox.
What is Synthesis and Properties of Polyimide Ionomers Containing Sulfoalkoxy and Fluorenyl Groups about?
## Abstract A series of sulfopropylated and sulfobutylated polyimide copolymers containing fluorenyl groups, SPI‐4, were synthesized to investigate the effect of alkyl side chains on the properties (stability, mechanical strength, water uptake, and proton conductivity) of the polymimide electrolyte membranes. SPI‐4 showed much better hydrolytic stability (in 10% MeOH aq at 100 °C) than the main chain sulfonated polyimide, SPI‐1. Tough, flexible, and ductile membranes were obtained from these copolymers. At high relative humidity all the SPI‐4 membranes showed high mechanical properties (>34 MPa of the maximum stress) and proton conductivity (>0.1 Scm^−1^). These properties are comparable to or even better than those of the perfluorosulfonic acid ionomer (Nafion 112). The new polyimide ionomers have proved to be a possible candidate as polymer electrolyte membrane for PEFCs and DMFCs. © 2005 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 43: 4439–4445, 2005
Who reads Synthesis and Properties of Polyimide Ionomers Containing Sulfoalkoxy and Fluorenyl Groups?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Tomohiro Yasuda; Kenji Miyatake; Michiko Hirai; Masato Nanasawa; Masahiro Watanabe
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0887-624X)
- Published
- 2005
- Language
- EN
- Field
- Materials Science (Physical Sciences)