Various combinations of phosphonated molecules and metal ions are used to build up stable porous networks. Depending on the composition the pore sizes can be altered and with small proton conducting molecules as ionomers filled. The networks are stable under aqueous and acidic conditions and show an strongly improved retention behavior for the small ionomers due to hydrogen bonding in comparison to other membranes.The resulting materials can be incorporated in polyimdes or polysulfones and show excellent film-forming properties. By solid-state NMR, TEM and SEM the structure is elucidated. The proton conductivity of the polymer/ metal networks are in the range of 10-1 to 10-2S/cm. In particular at higher temperature the values are higher than for Nafion, and therefore matching the requirements for fuel cell membranes in automotive industries defined by the DOE.ChemSusChem 2014, online,DOI: 10.1002/cssc.201301055; PCT Int. Appl. 2013, PCT/EP2013/002625

Proton conducting membranes formed by networks of Al<sup>3+</sup> and phosphorylated monomers and polymers

248th National Meeting (2014)

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Proton conducting membranes formed by networks of Al3+ and phosphorylated monomers and polymers

Proton conducting membranes formed by networks of Al³⁺ and phosphorylated monomers and polymers