Lamellar Thickening by Annealing

Changes in the amorphous relaxation behavior with rising temperature exhibited a monotonous reduction in the integral width independent of sample morphology, while a crystalline relaxation change is unique for each sample. Thus, the complete analysis of H FID allows us to discuss the chain mobility of the amorphous and crystalline phases independently. 

Regime 1 The interfacial chains, like amorphous chains, get the high mobility, which leads to the decrement of the component ratios (crystallinity) below 60 °C. However, the residual crystalline molecules inside the lamellae still maintain their hindered molecular motion thus, the integral width of the spectrum maintains a constant level. 

Regime 3 Over 130 C, rapid progress of partial melting causes a decreasing of the crystalline component. The residual crystalline region still retains its restricted molecular motion until the complete melting. 

The MGC skipped Regime 1, due to the limited relaxation of its entangled molecules on the lamellar surfaces, rather than the adjacent reentry folding for the SGC. 

Many NMR analyses have been carried out for the molten or solution state of RE to characterize the random coiled molecular chain [17-20,23,39 2]. The relaxation evaluation for the amorphous phase of RE in the solid state remains ambiguous because of the strong crystalline component that obscures the entanglement component in the amorphous phase. The perfect EID fitting and combination with TEM and SAXS was apphed to evaluate the effects of prior concentration on the amorphous chain characteristics. 

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