title: Facile synthesis of supramolecular ionic polymers that combine unique rheological, ionic conductivity, and self-healing properties.
abstract: A new family of supramolecular ionic polymers is synthesized by a simple method using (di-/tri-)carboxylic acids and (di-/tri-)alkyl amines. These polymers are formed by carboxylate and ammonium molecules that are weakly bonded together by a combination of ionic and hydrogen bonds, becoming solid at room temperature. The supramolecular ionic polymers show a sharp rheological transition from a viscoelastic gel to a viscous liquid between 30 and 80 °C. This sharp viscosity decrease is responsible for an unprecedented jump in ionic conductivity of four orders of magnitude in that temperature range. As a potential application, this chemistry can be used to develop polymeric materials with self-healing properties, since it combines properties from supramolecular polymers and ionomers into the same material.
authors.affiliation: Institute for Polymer Materials (POLYMAT) and Grupo de Ingeniería Química, University of the Basque Country (UPV-EHU), Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain.
authors.forename: M Ali
authors.initials: MA
authors.lastname: Aboudzadeh
authors.forename: M Eugenia
authors.initials: ME
authors.lastname: Muñoz
authors.forename: Antxon
authors.initials: A
authors.lastname: Santamaría
authors.forename: Rebeca
authors.initials: R
authors.lastname: Marcilla
authors.forename: David
authors.initials: D
authors.lastname: Mecerreyes
mesh_terms: D000588:Amines / Q000737:chemistry; D007477:Ions / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D012212:Rheology; D013696:Temperature
chemical_list: D000588:Amines; D007477:Ions; D011108:Polymers