Synthesis of some polyimides by different methods. Baghdad Science Journal, Iraq, Baghdad, v. 2, n. 3, p. 460–470, 2021. DOI: 10.21123/bsj.2005.2.3.460-470. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/638.. Acesso em: 4 may. 2024.