Figure 6.

Solid-state ¹³C NMR spectra of (a,b) MgAl-PAA₄₉-CTPPA; (c,d) MgAl-P(AA_8.5-stat-BA_8.5)-CTPPA and (e,f) MgAl-P(AA_19.5-stat-BA_19.5)-CTPPA. Spectra (a,c,e) are quantitative spin-echo experiments recorded in non-saturating quantitative conditions, whereas (b,d,f) correspond to ¹³C{¹H} CP-MAS experiments recorded at short contact time (0.2 ms). Peak assignments are indicated by colored circles and squares for signals attributed to the AA and BA units, respectively. The green stars and dotted lines presumably correspond to C atoms within the terminal fragments of the copolymer.