Definition of ion-exchange resin in English:

ion-exchange resin

noun

Chemistry
  • A synthetic polymer suitable for use in ion exchange.

    Such polymers are commonly characterized by a cross-linked molecular network which allows the penetration of both solvent and ions, and has ionized or ionizable groups attached to it. They are usually used in the form of small beads or a membrane.

Origin

1940s; earliest use found in U.S. Patents.