1H-NMR spectra were acquired by dissolving
the polymer in deuterochloroform (CDCl3) at a concentration
of 10mg/mL and analyzed on a Bruker Avance
II 500 spectrometer at 22∘C with 7.4ms pulse width (30∘
pulse angle), 1 s pulse repetition, 10,330Hz spectral width,
and 65,536 data points.