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Synthèse d’ionomères par polycondensation directe de monomères fonctionnels

Abstract : This thesis describes the synthesis and characterization of proton conducting polymers for application as membrane for fuel cells (PEMFC). The approach for the synthesis of polymers consists in creating polymers from direct polycondensation of functional monomers, in order to better control their final IEC. Three sulphonated monomers and three phosphonated monomers have been first synthetized. Different types of polyarylethers (one of them is both sulphonated and phosphonated) and one perfluorinated polymer (PFCB) have been synthetised by direct polycondensation of functional monomers. In order to explain the influence of the solvent in the final morphology of the membrane, and the relation between its structure and properties, one morphological study has been realized to the obtained polymers but also to their analogues “statistical” polymers. In general, the blocks polymers obtained the highest values of conductivity. One polyarylether seems particularly interesting, because its conductivity value is much higher than Nafion®’s, and has a smaller swelling value. The perfluorinated polymer has also an interesting conductivity value (138 mS/cm). This thesis work is, to the best of our knowledge, the first example of the synthesis of a sulphonated PFCB obtained by direct polycondensation but also the first example of synthesis of a both sulfonated/phosphonated polyarylethers by direct copolymerisation of to types of functional monomers
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Submitted on : Friday, April 20, 2018 - 11:19:25 AM
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  • HAL Id : tel-01772270, version 1


Sergio Rojo Duran. Synthèse d’ionomères par polycondensation directe de monomères fonctionnels. Chimie organique. Université de Lyon, 2017. Français. ⟨NNT : 2017LYSE1294⟩. ⟨tel-01772270⟩



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