Fig. 1

Solid-state ¹³C CP/MAS NMR spectrum of TDA-Trz-POP. The spectrum confirms the chemical structure of the polymer through two distinct resonance signal peaks at 178.6 ppm and at 151.89 ppm.
Solid-state ¹³C CP/MAS NMR spectrum of TDA-Trz-POP. The spectrum confirms the chemical structure of the polymer through two distinct resonance signal peaks at 178.6 ppm and at 151.89 ppm.