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.
CITATION STYLE
Verstraeten, F., Göstl, R., & Sijbesma, R. P. (2016). Stress-induced colouration and crosslinking of polymeric materials by mechanochemical formation of triphenylimidazolyl radicals. Chemical Communications, 52(55), 8608–8611. https://doi.org/10.1039/c6cc04312g
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