Fig. 2: Aerobic mechano-RAFT driven by ball-milling.
From: Aerobic mechanochemical reversible-deactivation radical polymerization
a Schematic polymerization of nBA. b Physical pictures and infrared thermal images of the ball milling jar before and after the reaction. c Controls for aerobic mechano-RAFT reaction conditions: [nBA]: [BTPA]: [Et3B-PyOMe] = 200:1:5, 100 μL (0.03 mL/g) DMF as LAG, 35 mL zirconium oxide milling jar with four 8 mm diameter zirconium oxide balls, Reaction condition: 30 Hz-2 h, and conversion was determined by 1H NMR spectroscopy. d Kinetic plot evolution of mechano-RAFT under various ball milling frequencies. e The evolution of molecular weight and dispersity for the polymerization versus conversion. f GPC traces of aerobic mechano-RAFT with different DPT. g GPC traces of PnBA and chain-extended polymer.
