{
  "$type": "site.standard.document",
  "description": "To provide a sulfonic acid group-containing polymer which is capable of forming a low hydrogen permeable membrane, which shows a high ion exchange capacity, and which shows a proper softening temperature. The sulfonic acid group-containing polymer has units u1 represented by the following formula…",
  "path": "/patents/1305976",
  "publishedAt": "2021-12-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C08F14/26",
    "AGC Inc."
  ],
  "textContent": "To provide a sulfonic acid group-containing polymer which is capable of forming a low hydrogen permeable membrane, which shows a high ion exchange capacity, and which shows a proper softening temperature. The sulfonic acid group-containing polymer has units u1 represented by the following formula u1, units u2 represented by the following formula u2, and units u3 based on tetrafluoroethylene, in the formula u1, Rand Rare each independently a Cperfluoroalkylene group, and Zis a hydrogen ion, a metal ion, or an ammonium ion, —[CF—CF(CFO—R)]— Formula u2 in the formula u2, Ris a perfluoroalkyl group which may contain a SOZgroup and/or an etheric oxygen atom.",
  "title": "SULFONIC ACID GROUP-CONTAINING POLYMER, FLUOROSULFONYL GROUP-CONTAINING POLYMER, AND LIQUID COMPOSITION"
}