Title: thermosetting polymer
Long Title: IUPAC Gold Book - thermosetting polymer
DOI: 10.1351/goldbook.TT07168
Status: current

Definition
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.

Related Terms
- Curing: https://goldbook.iupac.org//terms/view/CT07137
- Prepolymer: https://goldbook.iupac.org//terms/view/PT07163
- polymer network: https://goldbook.iupac.org//terms/view/P04742

Source
- PAC, 2004, 76, 889. 'Definitions of terms relating to reactions of polymers and to functional polymeric materials (IUPAC Recommendations 2003)' on page 898 (https://doi.org/10.1351/pac200476040889)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/TT07168/html
- json: https://goldbook.iupac.org/terms/view/TT07168/json
- xml: https://goldbook.iupac.org/terms/view/TT07168/xml

Citation: 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. 10.1351/goldbook.TT07168
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Accessed: 2026-05-28T06:07:37+00:00