RT info:eu-repo/semantics/article
T1 Boosting m-aramids performance with p-oriented aromatic amide side chains
A1 Miguel Ortega, Alvaro
A1 Vallejos Calzada, Saúl
A1 García Pérez, José Miguel
A1 Trigo López, Miriam
K1 Mechanical performance
K1 Thermal properties
K1 Hydrogen bonding
K1 High performance
K1 Side chain
K1 Application in hydrogen environments
K1 Polímeros
K1 Polymers
K1 Química orgánica
K1 Chemistry, Organic
AB 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.
PB Elsevier
SN 0014-3057
YR 2024
FD 2024-10
LK http://hdl.handle.net/10259/9523
UL http://hdl.handle.net/10259/9523
LA eng
NO 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.
DS Repositorio Institucional de la Universidad de Burgos
RD 23-nov-2024