BLOCK COPOLYMERS, METHODS OF OBTAINING THEM AND USES FOR THEIR APPLICATION AS ANION EXCHANGE MEMBRANES WITH HIGH IONIC CONDUCTIVITY

Abstract

The present invention proposes block copolymers with high thermal stability, as well as a synthesis method for obtaining them from monomeric units of isatine-dibenzofuran and isatine-para-terphenyl via a polyhydroxyalkylation reaction at room temperature without the use of metal catalysts under non-stoichiometric conditions, thus allowing the use of monomers that do not require high purity. The resulting copolymers undergo post-synthesis modification reactions via nucleophilic substitution by incorporating alkyl ammonium bromides, thereby yielding polyelectrolytes with high ionic conductivity.