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

Yue, Hangbo and Fernández-Blázquez, J. P. and Beneito, D. F. and 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.

Description

Title: Real time monitoring of click chemistry self-healing in polymer composites
Author/s:
  • Yue, Hangbo
  • Fernández-Blázquez, J. P.
  • Beneito, D. F.
  • Vilatela, J. J.
Item Type: Article
Título de Revista/Publicación: Journal of Materials Chemistry
Date: 2014
ISSN: 0959-9428
Volume: 2
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

More information

Item ID: 33340
DC Identifier: http://oa.upm.es/33340/
OAI Identifier: oai:oa.upm.es:33340
DOI: 10.1039/c3ta14961g
Official URL: http://pubs.rsc.org/en/content/articlelanding/2014/ta/c3ta14961g#!divAbstract
Deposited by: Memoria Investigacion
Deposited on: 29 Jan 2015 19:26
Last Modified: 03 Feb 2015 09:03
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