Dynamics of Ion Locking in Doubly-Polymerized Ionic Liquids

In this work, we investigate the dynamics of ion motion in “doubly-polymerized” ionic liquids (DPILs) which both charged species an liquid are covalently linked to same polymer chains. Broadband dielectric spectroscopy is used characterize these materials over a broad frequency and temperature range, their behavior compared that conventional “singly-polymerized” (SPILs) only one attached Polymerization DPIL decreases bulk conductivity by four orders magnitude relative SPILs. The timescales for local rearrangement similarly found be approximately slower DPILs than SPILs, also have lower static constant. These results suggest copolymerization monomers affects on scales, with pairs serving form strong physical crosslinks between This study provides quantitative insight into energetics drive phenomenon “ion locking” currently under investigation new classes organic electronics.