2026-04-22T15:07:05Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/95232024-09-04T00:05:21Zcom_10259_4313com_10259_5086com_10259_2604col_10259_4314
Repositorio Institucional de la Universidad de Burgos
author
Miguel Ortega, Alvaro
author
Vallejos Calzada, Saúl
author
García Pérez, José Miguel
author
Trigo López, Miriam
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.
eng
Atribución 4.0 Internacional
Mechanical performance
Thermal properties
Hydrogen bonding
High performance
Side chain
Application in hydrogen environments
Boosting m-aramids performance with p-oriented aromatic amide side chains
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/9523/1/Miguel-epj_2024.pdf
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https://riubu.ubu.es/bitstream/10259/9523/2/Miguel-epj_2024-Supplementary_data.docx
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Miguel-epj_2024-Supplementary_data.docx