We next study the effect of coordination strength on the ionic conductivity of the metalligand coordinated PDMS by using a multivalent cation, Cu 2+ . To obtain the coordination structure, a small-molecule Cu 2+ -pyrdiyl imine complex is synthesized by adding copper trifluoromethanesulfonate (Cu(OTf) 2 ) into the model ligand N-propyl(2-pyridyl)methanimine.