Abstract

In dynamic rheological experiments melt behavior is usually expressed in terms of complex viscositye * (ω) or complex modulusG * (ω). In contrast, we attempted to use the complex fluidityϕ * (ω) = 1/µ * (ω) to represent this behavior. The main interest is to simplify the complex-plane diagram and to simplify the determination of fundamental parameters such as the Newtonian viscosity or the parameter of relaxation-time distribution when a Cole-Cole type distribution can be applied.

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