“…The properties of TPEs are the result of a combination of blocks' characteristics, thus essential in the materials design is to select the parts of the system that allow a stable micro-or nanostructure to be formed. Presently, the most used TPE flexible blocks are PEG [23][24][25][26][27], PTMO [28][29][30][31][32][33], and polyetheramine [34][35][36], as providing good flexibility and distribution of rigid block domains. The hard phase consists of amide blocks, including PA6 [37], PA11 [38,39], and PA12 [40][41][42], that provide strong interactions within the domains and high mechanical strength.…”