Real time monitoring of click chemistry self-healing in polymer composites

Yue, Hangbo; Fernández-Blázquez, J. P.; Beneito, D. F. y Vilatela, J. J. (2014). Real time monitoring of click chemistry self-healing in polymer composites. "Journal of Materials Chemistry", v. 2 (n. null); pp. 3881-3887. ISSN 0959-9428. https://doi.org/10.1039/c3ta14961g.

Descripción

Título: Real time monitoring of click chemistry self-healing in polymer composites
Autor/es:
  • Yue, Hangbo
  • Fernández-Blázquez, J. P.
  • Beneito, D. F.
  • Vilatela, J. J.
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Materials Chemistry
Fecha: 2014
Volumen: 2
Materias:
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

A photo-healable rubber composite based on effective and fast thiol-alkyne click chemistry as a selfhealing agent prestored in glass capillaries is reported. The click reaction and its effect on the mechanical properties of the composite are monitored in real time by dynamic mechanical analysis, showing that the successful bleeding of healing agents to the crack areas and the effective photoinitiated click reaction result in a 30% storage modulus increase after only 5 min of UV light exposure. X-ray tomography confirms capillary-driven bleeding of reactants to the damaged areas. The effect of storing the click chemistry reactants in separate capillaries is also studied, and results show the importance of stoichiometry in achieving a significant level of repair of the composite. No reactant degradation or premature chemical reaction is observed over time in samples stored in the absence of UV radiation; they are able to undergo the self-healing reaction even one month after preparation.

Más información

ID de Registro: 33340
Identificador DC: http://oa.upm.es/33340/
Identificador OAI: oai:oa.upm.es:33340
Identificador DOI: 10.1039/c3ta14961g
URL Oficial: http://pubs.rsc.org/en/content/articlelanding/2014/ta/c3ta14961g#!divAbstract
Depositado por: Memoria Investigacion
Depositado el: 29 Ene 2015 19:26
Ultima Modificación: 03 Feb 2015 09:03
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