Abstract This paper reports on hybrid organic–inorganic dense membrane materials in which protons and ions are envisioned to diffuse along the hydrophilic pathways. The hierarchical generation of functional hybrid materials was realised in two steps. First, the self- assembling properties of 3-(ureidoarene) propyltriethoxysilane compounds 1–5 in aprotic solvents were determined, revealing the formation of supramolecular oligomers. ...
