New Polyimide Based Composite Films for Fuel Cells: Study of the Porous Structure

Abstract:

New porous polyimide films were elaborated by vapor induced phase separation process. The influence of different parameters such as the nature of the solvent, the molecular weight of the porous agent, and relative humidity on the structure of the film was investigated. It was shown that the porous film prepared from NMP presents the most original morphology with micro-and nanopores. Moreover, such structure is only obtained when the porous agent used has a high molecular weight. The synthesized porous film was swelled in protic ionic liquid for fuel cell application. The performed conductivity measurements as a function of temperature have shown that the conductivity of the impregnated polyimide film increases when the temperature rises up to 150 °C following Arrhenius behavior.

• Periodical: Advanced Materials Research (Volume 747)
• Pages: 477-480
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.747.477
• Online since: August 2013
• Authors: Vincent Ratieuville, Kateryna Fatyeyeva, Corinne Chappey, Sergiy Rogalskyy, Oksana Tarasyuk, Stéphane Marais
• Keywords: Conductivity, Fuel Cell (FC), Phase Inversion, Polyimide, Porosity

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