Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. Synthesis of QP monomer.
  • fig. S2. NMR assignment of 3,3″-dibromo-para-terphenyl.
  • fig. S3. NMR assignment of QP monomer.
  • fig. S4. 1H NMR assignment of SPP-QP (titrated IEC = 2.4 mmol g−1) copolymer.
  • fig. S5. Morphology of SPP-QP (titrated IEC = 2.4 mmol g−1) membrane.
  • fig. S6. SAXS profile.
  • fig. S7. Number of absorbed water molecules per sulfonic acid group (λ).
  • fig. S8. Stress versus strain curves.
  • fig. S9. Chemical structure of the SPP-bl-1 copolymer.
  • fig. S10. Hydrogen and oxygen permeability.
  • fig. S11. Membrane durability and flexibility.
  • fig. S12. The effect of the OCV hold test on the molecular structure of the SPPQP
    membrane (IEC = 2.6 mmol g−1).
  • Mathematica Notebook

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