Figure 8.

a) Radio-frequency-pulse NMR sequence used to probe LDH/copolymer interactions. Shaded regions labeled 1 to 3 correspond to the main three steps of the experiment, as described in the text. b) Quantitative solid-state ¹H echo-MAS NMR spectrum of MgAl-P(AA_8.5-stat-BA_8.5)-CTPPA collected at 60 kHz MAS and 17.6 T. c) Series of ¹H MAS NMR spectra collected (in the same conditions as in b)) with the NMR rf-pulse sequence shown in a) using spin-diffusion mixing times τ_M of 0.01 to 200 ms to allow progressive propagation of the magnetization from the selectively-excited LDH OH protons to other nearby protons.