Abstract
AbstractThe existence of superimposed transition mechanisms in the “Tg region” of polymethacrylates has been indicated by several authors including Ferry and co‐workers, who also have tried to separate the mechanisms. Using the general properties of the viscoelastic function logJ2 = gα {log J1} and a simple weighting model, the α‐and β‐mechanisms have been separated. The viscoelastic function log J2 = gβ{log J1} is determined and is found to coincide both where different polymethacrylates are concerned and for the calculated as well as the directly measured data.
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