Tammann’s 2/3rd rule

https://doi.org/10.1351/goldbook.12806
Empirical rule that states that in a partially crystalline polymer the glass-transition temperature can be reasonably approximated by a value equal to two-thirds of the melting temperature, \(T_{\rm{m}}\)/\(\pu{K}\).
Source:
PAC, 2013, 85, 1017. (Glossary of terms relating to thermal and thermomechanical properties of polymers (IUPAC Recommendations 2013)) on page 1039 [Terms] [Paper]
Citation: 'Tammann’s 2/3rd rule' 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.12806 RIS BibTex EndNote
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