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cond-mat.soft2011
Anomalous Molecular Weight Dependence of Chain Dynamics in Unentangled Polymer Blends with Strong Dynamic Asymmetry
Silvia Arrese-Igor, Angel Alegria, Angel J. Moreno +1
We address the general question of how the molecular weight dependence of chain dynamics in unentangled polymers is modified by blending. By dielectric spectroscopy we measure the…
cond-mat.soft2011
Clarifying the controversy of the Tg depression in polystyrene thin films
V. M. Boucher, D. Cangialosi, A. Alegría +1
The glass transition temperature () of polymer thin films has been a subject of controversy in the last two decades. (Pseudo)thermodynamic determinations of generally su…