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, Dimethylacetamide (DMAc), Dimethylsulfoxide (DMSO)

. Dimethylformamide, Potassium Carbonate (K 2 CO 3 ), Bromine (Br 2 ), Toluene, purchased from Acros Organics, 1,1,2,2,-Tetrafluoro-2-(1,1,2,2,-tetrafluoro-2-iodoethoxy)ethane sulfonyl fluoride (ICF 2 CF 2 OCF 2 CF 2 SO 2 F), purchased from Interchim, Lithium Hydroxide (LiOH), Sodium Hydroxide (NaOH), Diethylene Glycol Dimethyl Ether (Diglyme), purchased from Alfa Aesar, were used as received, Copper (Cu) powder for organic synthesis, purchased from Sigma Aldrich

, Acetic Acid purchased from Sigma Aldrich was distilled under vacuum before use, vol.4

, Difluorodiphenyl Sulfone (DFDPS), 4,4'-Biphenol (BP), and 4,4'-Dihydroxydiphenyl Sulfone (DHDPS), purchased from Alfa Aesar, were recrystallized from isopropanol before use. Decafluorobiphenyl (DFBP)

, Synthesis of PES-FPES Multiblock Copolymers In a typical protocol for the synthesis of block copolymer PES-FPES 5/5 (see Table A1), a 100-mL three-neck round bottom flask, equipped with a mechanical stirrer, a condenser, an argon inlet-outlet and a Dean-Stark trap

, 098 mmol). DMAc (30 mL) was added to provided ? 25 % (w/v) solid concentration. As the mixture was completely dissolved, BP, vol.2, issue.3, p.15

, The reaction bath was heated to 150 °C and kept at this temperature for 4h to dehydrate the system. Then, the bath temperature was slowly raised to 160 °C by the controlled removal of toluene. Then, the temperature of the reaction bath is decreased to 120 °C and the polymerization was allowed to proceed at this temperature for 24h. Then, the reaction bath was cooled down to 70 °C and K 2 CO 3 (4.569 g, 0.0331 mol) was introduced, and the solution containing 2.758 g of DHDPS (11.021 mmol) in 7 mL of DMAc (? 40 % m/v) was dripped drop-by-drop, vol.387

A. Scheme, The synthesis procedure of ionomer InX/Y

H. ,

, ?6.98 (m, 12H)

. F-nmr, CDCl 3 ): ? (ppm) -137.81 (s, Ar?F), -138.20 (m, Ar?F), -153.28 (s, Ar?F), -153.68 (m, Ar?F)

, Ce travail sur les ionomères aromatiques à blocs ouvre des perspectives de développement, notamment pour des applications au-delà des membranes pour piles à combustible

, ? Utilisation des ionomères aromatiques comme liants pour les couches de catalyseur de piles

, Développement des électrolytes polymères multi-bloc mono-ion pour les batteries au lithium-ion à base de copoly(arylène éthersulfone) à blocs multiples portant des fonctions perfluorosulfonylimide

L. Assumma, C. Iojoiu, R. Mercier, S. Lyonnard, H. D. Nguyen et al., Synthesis of Partially Fluorinated Poly(Arylene Ether Sulfone) Multiblock Copolymers Bearing Perfluorosulfonic Functions, J. Polym. Sci. Part A Polym. Chem, issue.16, pp.1941-1956, 2015.
URL : https://hal.archives-ouvertes.fr/hal-01221124

O. Danyliv, C. Gueneau, C. Iojoiu, L. Cointeaux, A. Thiam et al., Polyaromatic Ionomers with a Highly Hydrophobic Backbone and Perfluorosulfonic Acids for PEMFC, Electrochim. Acta, vol.214, pp.182-191, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01902802

O. Danyliv, C. Iojoiu, V. Barbier, V. Martin, and J. Sanchez, Aromatic Ionic Monomer Bearing Perfluorosulfonate Moiety and Its Polycondensation toward High Performance Superacid Ionomers, J. Fluor. Chem, vol.189, pp.43-50, 2016.

O. Danyliv, C. Iojoiu, S. Lyonnard, N. Sergent, E. Planes et al., Highly Phase Separated Aromatic Ionomers Bearing Perfluorosulfonic Acids by Bottom-up Synthesis: Effect of Cation on Membrane Morphology and Functional Properties, Macromolecules, vol.49, issue.11, pp.4164-4177, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01884501

L. Assumma, H. Nguyen, C. Iojoiu, S. Lyonnard, R. Mercier et al., Effects of Block Length and Membrane Processing Conditions on the Morphology and Properties of Perfluorosulfonated Poly(arylene Ether Sulfone) Multiblock Copolymer Membranes for PEMFC, ACS Appl. Mater. Interfaces, vol.7, issue.25, pp.13808-13820, 2015.
URL : https://hal.archives-ouvertes.fr/hal-01221131

H. D. Nguyen, L. Assumma, P. Judeinstein, R. Mercier, L. Porcar et al., Controlling Microstructure-Transport Interplay in Highly PhaseSeparated Perfluorosulfonated Aromatic Multiblock Ionomers via Molecular Architecture Design, ACS Appl. Mater. Interfaces, vol.2017, issue.2, pp.1671-1683

H. Nguyen, J. Jestin, L. Porcar, S. Lyonnard, and C. Iojoiu, Conductivity and Thermomechanical Stability of Fuel Cell Membranes Boosted by Blending Block Copolymers with Nafion. To be submitted to, Journal of Membrane Science

H. Nguyen, E. Planes, P. Soudant, L. Porcar, S. Lyonnard et al., Aromatic Multi-Block Ionomers with Extensively-Delocalized Negative Charge for PEMFC Application. To be submitted to, Journal of Physical Chemistry