Title: polyamide acid
Long Title: IUPAC Gold Book - polyamide acid
DOI: 10.1351/goldbook.15268
Status: current

Definition
Polyamide containing pendent carboxy groups:   where \(\ce{R}\) is a constitutional unit with a connectivity three or higher.



Note
A polyamide acid is mostly prepared as a processable precursor giving a polyimide upon thermal curing. The polyamide acid prepared from benzene-1,2:4,5-tetracarboxylic dianhydride (formerly pyromellitic anhydride) and hexane-1,6-diamine (formerly hexamethylenediamine) is an example of such a precursor: 

Source
- PAC, 2009, 81, 1131. 'Glossary of class names of polymers based on chemical structure and molecular architecture (IUPAC Recommendations 2009)' on page 1148 (https://doi.org/10.1351/PAC-REC-08-01-30)

Other Outputs
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- json: https://goldbook.iupac.org/terms/view/15268/json
- xml: https://goldbook.iupac.org/terms/view/15268/xml

Citation: Citation: 'polyamide acid' 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.15268
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Accessed: 2026-04-20T17:20:52+00:00