Fig. 4: 1H NMR spectra.

1H NMR (400 MHz, CDCl3) spectra of poly-1a20 (a), poly(220-b-1a40) (b), and poly-220 (c) obtained at room temperature.

1H NMR (400 MHz, CDCl3) spectra of poly-1a20 (a), poly(220-b-1a40) (b), and poly-220 (c) obtained at room temperature.