Figure 3.

(a) Time evolution of the mutual diffusion coefficient and the interphase thickness determined from rheology with a poly(methyl methacrylate) (PMMA)/poly(vinylidene fluoride) (PVDF) bilayer healed at 200 °C, (b) normalized PVDF concentration profile versus normalized position determined from SEM-energy-dispersive X-ray analysis (EDX) in the cross-section of the bilayer after healing for 45 min (black solid squares) and the coextruded bilayer (red open circles). The sparse and dense shadow zones designate the interphase scale in the healed and coextruded bilayer, respectively. Reproduced with permission from Ref. [45]. Copyright (2016) AIP Publishing.