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Interaction of catalytic spheres with mechano-radicals. (A) ESR spectra of SZ-650 and SZ-800. (B) Proposed adsorption geometry and stabilization of a secondary carbon-centered radical on SZ-800, and propene yields during 1 h milling of model PP at 30 Hz. (C) ESR spectra of WZ-calc and WZ-red. (D) Proposed adsorption geometry and stabilization of a secondary carbon-centered radical on WZ-red, and propene yields during 1 h milling of model PP at 30 Hz.
