devitrification

in polymer science
https://doi.org/10.1351/goldbook.12757
Formation of a polymer melt from a polymer glass.
Note: Devitrification is usually brought about by heating or exposure to a solvent as liquid or vapour.
Source:
PAC, 2013, 85, 1017. (Glossary of terms relating to thermal and thermomechanical properties of polymers (IUPAC Recommendations 2013)) on page 1024 [Terms] [Paper]