{
  "$type": "site.standard.document",
  "description": "The present invention relates to block copolymers comprising sulfonated poly(sulfones), membranes comprising said copolymers and methods for preparing said copolymers and membranes. The block copolymer of the invention comprises a) at least one hydrophilic block consisting of a fully sulfonated…",
  "path": "/patents/995134",
  "publishedAt": "2012-12-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M8/1027",
    "MAX PLANCK GESELLSCHAFT [DE]"
  ],
  "textContent": "The present invention relates to block copolymers comprising sulfonated poly(sulfones), membranes comprising said copolymers and methods for preparing said copolymers and membranes. The block copolymer of the invention comprises a) at least one hydrophilic block consisting of a fully sulfonated poly(arylene sulfone) of the following formula -[-SO 2 -Ar 1 (SO 3 M) o -] n -SO 2 - ( I ), b) at least one hydrophobic block consisting of a poly(arylene sulfone) of the following formula -O-[(Ar 2 -X) a -(Ar 3 -Y) b -(Ar 4 -Z) c -(Ar 5 -O) d -] m ( II ), wherein X = -, C(CF 3 ) 2 , C(CH 3 ) 2 , O, C=O or SO 2 ; Y and Z are O or SO 2 , with the proviso that at least one of Y and Z is SO 2 ; a, b, c and d are 0 or 1, with the proviso that at least 2 of a, b, c and d are 1; wherein the at least one hydrophilic block and the at least one hydrophobic block are coupled via a coupling molecule of the following formula Ar 6 -D-(As) p -E-(Ar 7 ) q ( III ), wherein Ar 6 has at least 4 halogen substituents, preferably fluorine substituents, As represents an aromatic or heteroaromatic ring system with 5-18 ring atoms, including As 1 -Z as -As 2 , with As 1 and As 2 representing an aromatic or heteroaromatic ring system with 5-18 ring atoms, preferably phenylene, and Z as = O, SO 2 , C(CH 3 ) 2 , C(CH 3 )(CF 3 ) or C(CF 3 ) 2 , p and q are 0 or 1, D may be O or SO 2 if p is 1 or an end-group such as CH(CH 3 ) 2 or CF(CF 3 ) 2 if p and q are 0, E may be O or SO 2 if q is 1 or an end-group such as CH(CH 3 ) 2 or CF(CF 3 ) 2 if q is 0.",
  "title": "Novel block copolymers comprising sulfonated poly(sulfones) with high ion-exchange capacity, high ion-conductivity and high stability"
}