Figure 3. Depolymerization and recovery of the BAPP-PHT at room temperature.
(a) The resin's degradation status in 10 ml 1 M HCl/THF solution at different times; (b) The resin's first-stage depolymerization time (t1) in different 1 M HCl/THF solutions and the contact angles of their corresponding H2O/THF solutions; (c) The depolymerization kinetics of the BAPP-PHT and the CF/PHT composite in 1 M HCl/THF solution (specimen size: 1 cm × 1 cm × 3 mm); (d) 1H NMR spectra of the depolymerized products of the BAPP-PHT in 1 M HCl/THF solution at different times; (e) The generation curve of BAPP.