Term: ion-exchange polymer
https://doi.org/10.1351/goldbook.IT07155

Definition:
Polymer that is able to exchange ions (cations or anions) with ionic components in solution.

Notes:
0) An ion-exchange polymer in ionized form may also be referred to as a polyanion or a polycation.
1) Synthetic ion-exchange organic polymers are often @NT07562@ polyelectrolytes.
2) A @MT06878@ having ion-exchange groups is called an ion-exchange membrane.
3) Use of the term 'ion-exchange @RT07166@' for 'ion-exchange polymer' is strongly discouraged.

Related Terms:
1) ion exchange (http://doi.org/10.1351/goldbook.I03167).
2) network (http://doi.org/10.1351/goldbook.NT07562).
3) membrane (http://doi.org/10.1351/goldbook.MT06878).
4) resin (http://doi.org/10.1351/goldbook.RT07166).

Source: PAC, 2004, 76, 889. 'Definitions of terms relating to reactions of polymers and to functional polymeric materials (IUPAC Recommendations 2003)' on page 895 (https://doi.org/10.1351/pac200476040889)

Citation: 'ion-exchange 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.IT07155

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