Novel monomers are reported that are derived from norbornene functionalized with oligoethyleneoxy groups that carry imidazolium salts. These monomers were polymerized via ruthenium-catalyzed ring-opening metathesis polymerization in a variety of solvents, including ionic liquids, at different temperatures to give novel low T,, polymers. These polymers are expected to act as new polymer electrolytes. (c) 2006 Elsevier B.V. All rights reserved.