Figure 5.

Specific viscosity of rings in the linear-ring blend as a function of ring volume fraction. Experimental points (black circles) are reported along with model predictions (black dashed line with A=0.32). The solid green line is obtained using equation (14). The ratio $A\sqrt{\pi }/c_L$ was found to be 0.32 (see text). The red arrow at ϕ_R*=0.13 indicates the overlap ring fraction, while the red square bracket represents the entanglement ring fraction range 0.3<ϕ_R,e<0.4 (see text).