thermosetting polymer 

https://doi.org/10.1351/goldbook.TT07168
Prepolymer in a soft solid or viscous state that changes irreversibly into an infusible, insoluble polymer network by curing.
Notes:
  1. Curing can be induced by the action of heat or suitable radiation, or both.
  2. A cured thermosetting polymer is called a thermoset.
Source:
PAC, 2004, 76, 889. (Definitions of terms relating to reactions of polymers and to functional polymeric materials (IUPAC Recommendations 2003)) on page 898 [Terms] [Paper]
Citation: 'thermosetting polymer' 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.TT07168 RIS BibTex EndNote
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Last revised: February 24, 2014