Fig. 4
From: The photoregulation of a mechanochemical polymer scission
Mechanical retro-DA reaction of P1. a SEC curves for P1 upon sonication. A 2 mg mL–1 polymer solution was exposed to pulsed ultrasound (10.6 W cm–2) under an atmosphere of argon in an ice bath. b 1H NMR spectra of P1 before and after sonication (45 min), as well as after heating (3 h), showing the products of the retro-DA reaction (Supplementary Fig. 4)
