RAJENDIRAN, T.V.; LAKSHMI, L. Synthesis and Characterization of Certain New Azo Polyimides. Asian Journal of Chemistry, [S. l.], v. 22, n. 2, p. 934–942, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/11206. Acesso em: 1 jul. 2024.