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Phosphorus-Containing Sulfonated Polyimides for Proton Exchange Membranes

✍ Scribed by Mustafa Çakir; Sevim Karataş; Yusuf Menceloğlu; Nilhan Kayaman-Apohan; Atilla Güngör

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
354 KB
Volume
209
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

Synthesis and characterization of the novel sulfonated BAPPO monomer and its use in the synthesis of a new phosphine oxide‐based sulfonated polyimide are described. BTDA, 6FDA, and DDS were used as monomers in the polyimide synthesis. Sulfonated polyimide membranes were obtained by a solution thermal imidization method. The thermal behavior of the polymers was investigated by DSC and TGA. The morphological structure of the membranes was investigated by tapping‐mode AFM. The proton conductivities of the sulfonated polyimide increased regularly as a function of sulfonated diamine content. The conductivities are good compared to typical proton exchange membranes.

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