Stress-induced colouration and crosslinking of polymeric materials by mechanochemical formation of triphenylimidazolyl radicals.

نویسندگان

  • F Verstraeten
  • R Göstl
  • R P Sijbesma
چکیده

Under mechanical stress, the hexaarylbiimidazole (HABI) motif can cleave to triphenylimidazolyl radicals when incorporated into a polymer matrix. The mechanically produced coloured radicals can initiate secondary radical reactions yielding polymer networks. Thus, the HABI mechanophore combines optical reporting of bond scission and reinforcement of polymers in a single molecular moiety.

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عنوان ژورنال:
  • Chemical communications

دوره 52 55  شماره 

صفحات  -

تاریخ انتشار 2016