Abstract
PMMA and PC samples were subjected to several cooling rates from the glass transition temperature.
Stress-relaxation data, obtained with these samples under strains larger than the yield strain, were not influenced by the cooling rate previously experienced by the material. This shows that after yielding the effect of previous aging is quickly erased; similar indications, drawn from calorimetric measurements, were already available in (11–12).
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Rizzo, G., Titomanlio, G. Effect of cooling rate on the viscoelastic properties in the plastic zone of solid polymers. Polymer Bulletin 1, 743–748 (1979). https://doi.org/10.1007/BF00256274
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DOI: https://doi.org/10.1007/BF00256274