Figure 4.

GPC and ¹H NMR spectroscopy analysis results of c-PCLs and their linear analogues: (a) number-average degree of polymerization (${\overline{DP}}_n$) versus ${\overline{M_{n,}}}_{GPC}$; (b) ${\overline{DP}}_n$ versus ${\overline{M_{n,}}}_{NMR}$; (c) elution time (GPC) versus ${\overline{M_{n,}}}_{NMR}$. ${\overline{M_{n,}}}_{GPC}$: number-average molecular weight determined by a GPC system calibrated with polystyrene (PS) standards. ${\overline{M_{n,}}}_{NMR}$: number-average molecular weight determined by ¹H NMR spectroscopy analysis.