Figure 4
Measured relaxation times at 468 K from bilayer (100 nm PS/200 nm PBrS): (open triangles) τ1, (open circles) τ2, (open diamonds) τ. Corresponding homolayers: (open squares) 100 nm PS. Theoretical models: single layer fit (solid line), low viscosity interface model (dashed line), slip model for top PS layer (dash–dot–dot line). |