2026-04-22T15:07:38Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/95232024-09-04T00:05:21Zcom_10259_4313com_10259_5086com_10259_2604col_10259_4314

Miguel Ortega, Alvaro 819a5317-c643-4fb4-8231-e4b09a647014 600 Vallejos Calzada, Saúl 567 600 0000-0001-5522-6574 García Pérez, José Miguel 213 600 0000-0002-2674-8194 Trigo López, Miriam 556 600 0000-0001-5948-1230 2024-09-03T10:25:57Z 2024-09-03T10:25:57Z 2024-10 0014-3057 http://hdl.handle.net/10259/9523 10.1016/j.eurpolymj.2024.113397 This study aimed to enhance the mechanical properties of m-aramids by incorporating varying percentages of p-aramid side chains through copolymerization while ensuring solubility for practical applications. The mechanical performance of the resulting copolymers was compared with the commercial m-aramid, MPIA (poly(m-phenylene terephthalamide)). Notably, even with a 20% incorporation of p-aramid side chains, there was a substantial increase of 48% in Young’s modulus and 7% in tensile strength compared to MPIA. Additionally, the nitro group capping the p-aramid side chains demonstrated significant efficacy in enhancing the mechanical performance of the materials upon exposure to hydrogen. Specifically, there was an increase of more than 11% in Young’s modulus upon initial contact with hydrogen. This finding suggests potential applications in protective coatings for stainless steel used in high-pressure hydrogen storage environments. In such applications, exposure to hydrogen can accelerate embrittlement and limit operational lifespan, and coating with these materials can mitigate embrittlement and improve operational lifespan. This work was supported by the Regional Government of Castilla y León (Junta de Castilla y León), the Ministry of Science and Innovation MICIN and the European Union NextGenerationEU/PRTR, and the Spanish Agencia Estatal de Investigación (State Research Agency). Author M. Trigo-López received grant PID2019-108583RJ-I00 funded by MCIN/AEI/ 10.13039/501100011033. Álvaro Miguel-Ortega received funding from Ministerio de Universidades-European Union in the frame of NextGenerationEU RD 289/2021 (CA1/RSUE/2021-00409) by the Universidad Autónoma de Madrid. application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document eng Elsevier European Polymer Journal. 2024, V. 219, 113397 https://doi.org/10.1016/j.eurpolymj.2024.113397 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-108583RJ-I00/ES/POLIAMIDAS AROMATICAS MICRO Y NANOCELULARES REFORZADAS COMO MATERIALES DE ALTAS PRESTACIONES EN APLICACIONES DE SEGURIDAD, PROTECCION Y TRANSPORTE/ info:eu-repo/grantAgreement/UAM//CA1%2FRSUE%2F2021-00409/ Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Mechanical performance Thermal properties Hydrogen bonding High performance Side chain Application in hydrogen environments Polímeros Química orgánica Polymers Chemistry, Organic Boosting m-aramids performance with p-oriented aromatic amide side chains info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion European Polymer Journal 219 113397 THUMBNAIL Miguel-epj_2024.pdf.jpg Miguel-epj_2024.pdf.jpg IM Thumbnail image/jpeg 4867 https://riubu.ubu.es/bitstream/10259/9523/5/Miguel-epj_2024.pdf.jpg 57788a3a67132b3b35b2e8c2ad5b6d98 MD5 5 LICENSE license.txt license.txt text/plain; charset=utf-8 998 https://riubu.ubu.es/bitstream/10259/9523/4/license.txt aa90105e1c90a1b4fe810649aa967b7d MD5 4 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 908 https://riubu.ubu.es/bitstream/10259/9523/3/license_rdf 0175ea4a2d4caec4bbcc37e300941108 MD5 3 ORIGINAL Miguel-epj_2024.pdf Miguel-epj_2024.pdf application/pdf 1652440 https://riubu.ubu.es/bitstream/10259/9523/1/Miguel-epj_2024.pdf 069e634c3ee6e89a43c3217f77130c96 MD5 1 Miguel-epj_2024-Supplementary_data.docx Miguel-epj_2024-Supplementary_data.docx Supplementary data application/vnd.openxmlformats-officedocument.wordprocessingml.document 2227387 https://riubu.ubu.es/bitstream/10259/9523/2/Miguel-epj_2024-Supplementary_data.docx 2e407bc4860d99193b99c6055e0f151e MD5 2 10259/9523 oai:riubu.ubu.es:10259/9523 2024-09-04 02:05:21.175 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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