2026-07-01T14:16:11Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/48612021-11-10T09:38:20Zcom_10259_4313com_10259_5086com_10259_2604com_10259_4244col_10259_4314col_10259_4245

00925njm 22002777a 4500 dc Reglero Ruiz, José A. author Vallejos Calzada, Saúl author Pascual Portal, Blanca Sol author Ramos Rodríguez, Cipriano author Beltrán Calvo, Sagrario author García García, Félix Clemente author García Pérez, José Miguel author 2018-10 A series of cross-linked copolymer films based on 1-vinyl-2-pyrrolidone and methyl methacrylate were produced using different poly(ethylene glycol) dimethacrylates as cross-linking agents. The average molecular mass of the cross-linking agent was varied, then allowing the foaming process using supercritical CO2 (ScCO2), obtaining microcellular films with different cellular structures as a function of the molecular mass of the cross-linking agent. The chemical structure, swelling behavior, CO2 uptake and cellular morphology of the materials were studied. Finally, the influence of the different cross-linking agents in the mechanical properties was also evaluated by measuring the tensile properties of the microcellular films. 0896-8446 http://hdl.handle.net/10259/4861 10.1016/j.supflu.2018.07.011 Microcellular polymer foam Films Cross-linking Tensile properties ScCO2 foaming Microcellular polymer films based on cross-linked 1-vinyl-2-pyrrolidone and methyl methacrylate