Polymerized ionic liquids (PILs) are unique polyelectrolytes with cationic and anionic groups included in the repeating unit. They are extremely attractive in the field of materials science as they combine the properties of ionic liquids (high ionic conductivity, thermal and chemical stabilities) with those of polymers (mechanical stability, processing and tunable macromolecular design). Many examples have demonstrated their potential in applications such as dye sensitized solar cells, fuel cells, batteries, permselective membranes for CO2 recovery or catalysis. In all these applications, imidazolium-based PILs are by far the most widespread and investigated materials. Since the striking development of the copper-catalyzed azide-alkyne cycloaddition (CuAAC) modular ligation, a large variety of materials containing1,2,3-triazolegroups have been reported. However, applications of 1,2,3-triazoliums as anion recognition structures, organocatalysts, metal ligands and precursors of N-heterocyclic carbenes has only been explored lately. We have recently pioneered the synthesis of 1,2,3-triazolium-based PILs (Figure 1).Figure 1.  Structural variety of 1,2,3-triazolium-based polymerized ionic liquids.The tuning of structural parameters has a tremendous effect on ionic conductivity and thermal stability, crucial properties in most applications of PILs. The first generation TPILs not only demonstrates ionic conduction similar to that of PILs with comparable structure, pendant substituent and anion, but their synthesis also benefits from the robust and orthogonal nature of CuAAC. This oral communication is an attempt to demonstrate the potential of 1,2,3-triazolium chemistry to tackle new synthetic challenges using unexplored approaches competent to broaden the current structural variety of PILs.

1,2,3-triazolium-based poly(ionic liquid)s: A new class a functional ion conducting materials

248th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.