Figure 6: Analysis of gradient polycarbonates. | Nature Communications

Figure 6: Analysis of gradient polycarbonates.

From: Crystalline-gradient polycarbonates prepared from enantioselective terpolymerization of meso-epoxides with CO2

Figure 6

(a) Plot of the COPC and CPC carbonate unit contents in the resulting terpolymers versus the reaction time in the COPO/CPO/CO2 terpolymerization catalysed by (S,S,S,S)-1/PPNX system in dichloromethane (epoxide/dichloromethane=1/2 (molar ratio), 1/PPNX/COPO/CPO=1/2/250/250 (molar ratio), X=2,4-dinitrophenoxide) at 25 °C. (b) DSC profiles of gradient terpolymers at various time points: (A) 8 h; (B) 24 h; (C) 36 h. (c) Plots of the terpolymer molecular weight and distribution versus the reaction time. (d) GPC traces of the COPO/CPO/CO2 terpolymers obtained at various time points: (A) 8 h; (B) 24 h; (C) 36 h.

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