Fig. 6: Variable-temperature solid-state NMR spectroscopy.
From: Catalyst switch strategy enabled a single polymer with five different crystalline phases

a 2D 1H – 13C CP – MAS WISE spectra at RT, 60 °C, and 120 °C. b Slices extracted from the WISE spectrum at RT and 60 °C (30.3 ppm, PCL). c Slices extracted from the WISE spectrum at RT and 60 °C (17.7 ppm, PLLA). d 3D visualization of the WISE spectrum from 42–10 ppm. The green circles indicate the end group in each block. RT: room temperature.