secondary relaxation peak

synonym: secondary loss peak
https://doi.org/10.1351/goldbook.12799
Any peak in a loss curve either at a lower temperature than the temperature of the alpha relaxation peak or at a higher frequency than the frequency of the alpha relaxation peak.
Note: The use of the term "secondary relaxation transition peak" is discouraged.
See: alpha relaxation peak, beta relaxation peak, gamma relaxation peak
Source:
PAC, 2013, 85, 1017. (Glossary of terms relating to thermal and thermomechanical properties of polymers (IUPAC Recommendations 2013)) on page 1038 [Terms] [Paper]
Citation: 'secondary relaxation peak' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.12799 RIS BibTex EndNote
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