2026-06-29T18:17:47Zhttps://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

Microcellular polymer films based on cross-linked 1-vinyl-2-pyrrolidone and methyl methacrylate Reglero Ruiz, José A. Vallejos Calzada, Saúl Pascual Portal, Blanca Sol Ramos Rodríguez, Cipriano Beltrán Calvo, Sagrario García García, Félix Clemente García Pérez, José Miguel Microcellular polymer foam Films Cross-linking Tensile properties ScCO2 foaming 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. 2018-07-23T08:55:39Z 2018-10 2020-10 info:eu-repo/semantics/article 0896-8446 http://hdl.handle.net/10259/4861 10.1016/j.supflu.2018.07.011 eng The Journal of Supercritical Fluids. 2018, V. 140, p. 270-278 https://doi.org/10.1016/j.supflu.2018.07.011 info:eu-repo/grantAgreement/MINECO/MAT2017-84501-R http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 International Elsevier