Polymer-based electrolyte and a method for obtaining the same

A method for obtaining a network with dispersed quaternary ammonium groups, comprising the following subsequent steps:

• iii. a cationic ring-opening polymerization of a monomer with a general formula of 2-R1-2-oxazoline to obtain a polyoxazoline polymer with amide groups, wherein the R1 in the monomer is selected from the group consisting of linear aliphatic groups, branched aliphatic groups, cyclic aliphatic groups, and aromatic groups;
• iv. a hydrolysis of the polyoxazoline polymer obtained in step (i) to obtain, a first POZ chains comprising secondary amine groups in addition to the amide groups mentioned in step (i);
• x1. a partial conversion of the secondary amine groups to tertiary amine groups to obtain second POZ chains with tertiary amine groups;
• x2. a protonation of the tertiary amine groups with one or more ionic components (XY) to introduce quaternary ammonium groups with corresponding anions (Y-) to constitute a polyoxazoline-based electrolyte comprising the quaternary ammonium groups and the secondary amine groups as crosslinking sites for a formation of the network;
• iii. a crosslinking of the first POZ chains with an epoxy resin via the secondary amine groups of the first POZ chains to obtain the network.