Fig. 3: Structural parameters as obtained by SAXS during isothermal crystallization from the melt as a function of the crystallization time.

For each sample system the isothermal crystallization was performed for a high (~20 K) and a low (~5 K) supercooling ΔT. The arrow represents the expected influence of the ICD according to Fig. 2. RHS y-axis: time-dependent Porod parameter P (grey) normalized to 1 at the end of the primary crystallization process (dotted line). LHS y-axis: time-dependent long period L (black), amorphous thickness da (blue), and crystalline thickness dc (red). σc/a are shown as “error bars". For PEO the scale of the left y-axis is increased roughly by factor 2. Source data are provided as a Source Data file.