Fig. 6: Post-functionalization, characterization, and chemical recycling of poly(EVP)ROP. | Nature Communications

Fig. 6: Post-functionalization, characterization, and chemical recycling of poly(EVP)ROP.

From: Bifunctional and recyclable polyesters by chemoselective ring-opening polymerization of a δ-lactone derived from CO2 and butadiene

Fig. 6

a Post-functionalization of poly(EVP)ROP via sequential (1) Michael addition reaction and (2) photoinduced thiol-ene click reaction. (b) Stacked 1H NMR spectra (400 MHz, CDCl3) of (1) poly(EVP)ROP (Mn = 6.5 kg·mol-1; Table 1 run 13), (2) poly(EVP)S1 produced via selective Michael addition reaction, and (3) poly(EVP)S1+S2 produced via two sequential Michael addition and click reactions. (c) Stacked 1H NMR spectra (400 MHz, CDCl3) of (1) pristine EVP monomer for comparison; (2) recovered EVP monomer from recycling; (3) poly(EVP)ROP synthesized from recycled monomer (Supplementary Table 1 run 12).

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