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

Abstract
Subjecting hexaarylbiimidazole in polymer architectures to stress generates coloured triphenylimidazolyl radicals that initiate secondary radical reactions unifying stress-sensing and damage-repair.
Funding Information
  • Deutsche Forschungsgemeinschaft (GO 2634/1-1)
  • Ministerie van Onderwijs, Cultuur en Wetenschappen (Gravity program 024.001.035)