ArticlePolymers2025
Mean-Square Displacements of Polymers in Simulated Blend Melts.
Article in Polymers, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
We apply numerical analysis to interpret reported simulations of polymer blend melts, in particular simulational determinations of mean-square displacements g(t) of polymer beads and polymer centers of mass. Our interest is a quantitative comparison of g(t) with theoretical models that predict g(t). Many models predict that g(t) can be described as a sequence of power-law regimes g(t)∼tα. In each regime, α has a model-predicted value. We find that these models are not consistent with simulations of blend melts. Instead, g(t) generally has a single power-law regime and (when those times are reached) a long-time diffusive (α≈1) regime. Outside these two regions, if one writes g(t)∼tα, then α is a smoothly-changing function of time.
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