GAJEWSKA, T.; KASZUBA, A.; CZUBA, H.; GĂ“RECKA, E. Determination of hydroxyl groups in acetone environment as a result of the reaction with pyromellitic dianhydride, catalysed with 1-methylimidazole. Polimery, [S. l.], v. 49, n. 2, p. 128-131, 2022. DisponĂ­vel em: http://ichp.vot.pl/index.php/p/article/view/1734. Acesso em: 14 may. 2024.