{
  "$type": "site.standard.document",
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  "description": "[Object] To provide a proton exchange membrane for a fuel cell having excellent proton conductivity, lower property of swelling with hot water, and excellent durability, as well as a block copolymer forming the proton exchange membrane, and a composition, a molded product, a fuel cell proton…",
  "path": "/patents/1015388",
  "publishedAt": "2011-03-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C08G65/4006",
    "TOYO BOSEKI [JP]"
  ],
  "textContent": "[Object] To provide a proton exchange membrane for a fuel cell having excellent proton conductivity, lower property of swelling with hot water, and excellent durability, as well as a block copolymer forming the proton exchange membrane, and a composition, a molded product, a fuel cell proton exchange membrane electrode assembly, and a fuel cell. [Solving Means] (1) A block copolymer having a hydrophilic segment and a hydrophobic segment and having a structure expressed by Chemical Formula 1 below (where X represents H or a univalent cation, Y represents sulfonyl group or carbonyl group, each of Z and Z' independently represents any of O and S atoms, W represents one or more group selected from the group consisting of direct bond between benzenes, sulfone group and carbonyl group, each of Ar 1 and Ar 2 independently represents divalent aromatic group, and each of n and m independently represents an integer from 2 to 100), and a molded product, a composition, and a proton exchange membrane, as well as a fuel cell including the proton exchange membrane.",
  "title": "NOVEL SULFONIC ACID GROUP-CONTAINING SEGMENTALIZED BLOCK COPOLYMER, USE THEREOF, AND METHOD FOR PRODUCING NOVEL BLOCK COPOLYMER"
}