Fig. 5: Kinetic studies of MOF-mediated NCA-ROP under different conditions. | Nature Communications

Fig. 5: Kinetic studies of MOF-mediated NCA-ROP under different conditions.

From: A nanoscale MOF-based heterogeneous catalytic system for the polymerization of N-carboxyanhydrides enables direct routes toward both polypeptides and related hybrid materials

Fig. 5

a Kinetic analyses of the UiO-66-1 NP-mediated NCA-ROP using IR spectroscopy. Polymerizations were performed with different mBLG-NCA/mUiO-66 ratios and fixed [BLG-NCA]0 = 0.114 M in anhydrous DCM. b The log-based plot of monomer conversion versus time shows the differences in reaction rates for NCA-ROPs in the acceleration stage when the amount of UiO-66 changed. The same dataset as in panel a was used. c The fitting plot of total EIS on the surfaces versus the amount of UiO-66-2 NPs used, in the range of mBLG-NCA/mUiO-66 = 1–10. d In situ 1H NMR monitoring of the BLG-NCA polymerization (mBLG-NCA/mUiO-66 = 10) in CD2Cl2 containing 10% water. e Conversion-versus-time plot of the ROP of BLG-NCA under different conditions, calculated from peak integrations using the spectra obtained during the 1H NMR-based kinetic study. Error bars represent ± SD.

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