Abstract
A model for stress relaxation of linear chain polymer melts in the linear viscoelastic regime is proposed. This model is developed in the context of the lateral diffusion model of polymer dynamics, which assumes that polymers diffuse in the melt by sliding laterally along the curvilinear contours of neighboring chains. Calculations are performed for monodisperse and bidisperse melts and the results are found to be in very good agreement with published experimental results
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