2026-05-06T16:48:55Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/50932021-11-10T09:38:17Zcom_10259_5377com_10259_5086com_10259_2604com_10259_4363com_10259_4313col_10259_5378col_10259_4364col_10259_4314

Pascual Portal, Blanca Sol 418 500 Trigo López, Miriam 556 500 0000-0001-5948-1230 Reglero Ruiz, José A. 468 500 Pablos, Jesús Luis ace6696a-c30a-409d-a4ce-1f48eda8f1ab 500 Bertolín Burillo, Juan Carlos 62 500 Represa Pérez, César 471 500 0000-0001-6440-7748 Cuevas Vicario, José Vicente 137 500 0000-0002-2421-1529 García García, Félix Clemente 201 500 García Pérez, José Miguel 213 500 2019-05-20T10:00:39Z 2019-07 2021-08 0014-3057 http://hdl.handle.net/10259/5093 10.1016/j.eurpolymj.2019.03.058 We prepared microporous aramid films through a simple, inexpensive and green way, using ionic liquids (IL) as porosity promoters. Commercial poly(m-phenylene isophthalamide) (MPIA) films with different IL proportions were prepared, and then microporous films were obtained by removing the IL in distilled water. Microporous films presented density values between 0.34 and 0.71 g⋅cm−3 (around five times lower to commercial MPIA), with a homogeneous and controlled cellular morphology dependent on the proportion of the IL, showing cell sizes in the microcellular range (radii between 1 and 8 µm). Thermal, mechanical and electrical properties (specifically ionic conductivity) of the aramid films were analyzed to evaluate the influence of the IL proportion. Finally, it was observed that the MPIA/IL system presented a reversible thermally induced phase-separation process around 60 °C, which was characterized through AFM-Raman images and spectra, together with the variation of the ionic conductivity. FEDER (Fondo Europeo de Desarrollo Regional) and both the Spanish Agencia Estatal de Investigación (MAT2017-84501-R) and the Consejería de Educación-Junta de Castilla y León (BU306P18) application/pdf eng Elsevier European Polymer Journal. 2019, V. 116, p. 91-98 https://doi.org/10.1016/j.eurpolymj.2019.03.058 info:eu-repo/grantAgreement/MICINN/MAT2017-84501-R info:eu-repo/grantAgreement/JCyL/BU306P18 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Ionic liquid Aramid Porous film Thermally-induced phase separation Ingeniería química Chemical engineering Porous aromatic polyamides the easy and green way info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/5093/8/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 8 THUMBNAIL Pascual-epj_2019.pdf.jpg Pascual-epj_2019.pdf.jpg IM Thumbnail image/jpeg 4564 https://riubu.ubu.es/bitstream/10259/5093/7/Pascual-epj_2019.pdf.jpg e115ec11ccb1caabb6f64dd5559f2de3 MD5 7 ORIGINAL Pascual-epj_2019.pdf Pascual-epj_2019.pdf application/pdf 1915270 https://riubu.ubu.es/bitstream/10259/5093/1/Pascual-epj_2019.pdf c2fd494ed7d4a39da6c292dedc7f51d7 MD5 1 LICENSE license.txt license.txt text/plain; charset=utf-8 998 https://riubu.ubu.es/bitstream/10259/5093/5/license.txt aa90105e1c90a1b4fe810649aa967b7d MD5 5 TEXT Pascual-epj_2019.pdf.txt Pascual-epj_2019.pdf.txt Extracted text text/plain 49604 https://riubu.ubu.es/bitstream/10259/5093/6/Pascual-epj_2019.pdf.txt c268529a963aa2d3b83f5982ef4ed886 MD5 6 10259/5093 oai:riubu.ubu.es:10259/5093 2021-11-10 10:38:17.551 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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