Introduction of self-healing properties into covalent polymer networks via the photodissociation of alkoxyamine junctions

Siham Telitel, Yoshifumi Amamoto, Julien Poly, Fabrice Morlet-Savary, Olivier Soppera, Jacques Lalevée, Krzysztof Matyjaszewski

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Poly(n-butyl acrylate) networks were prepared by conducting click chemistry between dialkyne alkoxyamines and azide functionalized star-like oligomers synthesized by ATRP. The dissociation of alkoxyamines under UV irradiation was exploited to cleave the junctions between the network of star-like precursors. The efficiency of the cleavage, generating dangling nitroxides and increased mobility of poly(n-butyl acrylate) segments, was examined by ESR monitoring. The network progressively reformed after irradiation via the recombination of radical species. These reactions resulted in self-healing behavior, which was observed by AFM.

Original languageEnglish
Pages (from-to)921-930
Number of pages10
JournalPolymer Chemistry
Volume5
Issue number3
DOIs
Publication statusPublished - Feb 7 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biochemistry
  • Polymers and Plastics
  • Organic Chemistry

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