Ion-exchange materials
Cationic ammonium groups are used in ion-exchange resins and water-treatment materials.
Overview
Charged polymers and surfaces for binding or transporting ions.
Cationic ammonium groups are used in ion-exchange resins and water-treatment materials.
Applications
Quaternary ammonium ion-exchange material
Fixed ammonium groups can create cationic sites that bind anions or support membrane transport.
- Industry
- Water treatment
- Example
- Chloromethylated polymers can be aminated to introduce quaternary ammonium sites in ion-exchange materials.
Connected reactions
- Charged polymer network: Quaternary ammonium compounds → Ion-exchange materials
Quaternary ammonium groups can form fixed cationic sites in ion-exchange resins and membranes.
References
- Process for preparing physically stable quaternary ammonium anion exchange resins by chloromethylation and aminationDow Chemical Company · US Patent US4207398A · 1980
Supports chloromethylated polymer amination as a route to quaternary ammonium anion-exchange resins.