| Name | Perfluorosulfonic acid resin |
| Synonyms | Perfluorosulfonic acid resin perfluorinated sulfonic acid resin |
Perfluorosulfonic acid resin can be formed by reacting perfluoroethylene glycol divinyl ether with chlorosulfonic acid, introducing sulfonic acid groups, and then copolymerizing with tetrafluoroethylene.