Flexible composite films made of EMAA−Na+ ionomer: evaluation of the influence of piezoelectric particles on the thermal and mechanical properties - Tita, Sandra Patrícia da Silva; Magalhães, Fernão Domingos; Paiva, Diana; Bertochi, Maria Aparecida Zaghete; Teixeira, Guilhermina Ferreira; Pires, Ana L.; Pereira, André M.; Tarpani, José Ricardo (Polymers, 2022)