摘要:
Disclosed are a polymer electrolyte having improved hot water resistance and radical resistance, a proton conductive membrane comprising the polymer electrolyte, and a membrane-electrode assembly including the proton conductive membrane. The polymer electrolyte comprises at least one polymer selected from polyether, polyketone, polyetherketone, polysulfone, polyethersulfone, polyimide, polyetherimide, polybenzimidazole, polybenzothiazole, polybenzoxazole and the like. The polymer comprises a repeating structural unit with either or both of an aromatic ring and a heterocyclic ring, and a repeating structural unit represented by the formula (1) : wherein X is a single bond, an electron-withdrawing group or an electron-donating group; R is a single bond, -(CH 2 ) q - or -(CF 2 ) q - where q ranges from 1 to 10; m is from 0 to 10; k is from 0 to 5; 1 is from 0 to 4; and k + l ≥ 1.
摘要:
A solid polymer electrolyte includes a polymer having a sulfonic group and shows high proton conductivity in a wide range of temperatures and humidities and is excellent in hot water resistance and chemical stability. A proton conductive membrane is composed of the electrolyte. The polymer electrolyte includes a polymer having a structural unit represented by the following formula (1a) or (1b):
wherein A is a divalent electron-withdrawing group, B is a divalent electron-donating group or a direct bond, Ar is an aromatic group, Z is an oxygen or a sulfur atom, X is a hydrogen or a fluorine atom, j is an integer of 1 or greater, k is an integer of from 1 to 4, 1 is an integer of from 0 to 10, m is an integer of from 1 to 10, and n is an integer of from 1 to 8.
摘要:
A solid polymer electrolyte includes a polymer having a sulfonic group and shows high proton conductivity in a wide range of temperatures and humidities and is excellent in hot water resistance and chemical stability. A proton conductive membrane is composed of the electrolyte. The polymer electrolyte includes a polymer having a structural unit represented by the following formula (1a) or (1b):
wherein A is a divalent electron-withdrawing group, B is a divalent electron-donating group or a direct bond, Ar is an aromatic group, Z is an oxygen or a sulfur atom, X is a hydrogen or a fluorine atom, j is an integer of 1 or greater, k is an integer of from 1 to 4, 1 is an integer of from 0 to 10, m is an integer of from 1 to 10, and n is an integer of from 1 to 8.
摘要:
Disclosed are a polymer electrolyte having improved hot water resistance and radical resistance, a proton conductive membrane comprising the polymer electrolyte, and a membrane-electrode assembly including the proton conductive membrane. The polymer electrolyte comprises at least one polymer selected from polyether, polyketone, polyetherketone, polysulfone, polyethersulfone, polyimide, polyetherimide, polybenzimidazole, polybenzothiazole, polybenzoxazole and the like. The polymer comprises a repeating structural unit with either or both of an aromatic ring and a heterocyclic ring, and a repeating structural unit represented by the formula (1) : wherein X is a single bond, an electron-withdrawing group or an electron-donating group; R is a single bond, -(CH 2 ) q - or -(CF 2 ) q - where q ranges from 1 to 10; m is from 0 to 10; k is from 0 to 5; 1 is from 0 to 4; and k + l ≥ 1.
摘要:
Described herein is a production method of sulfonated polyarylene that is safe and enables easy control of the amount and position of sulfonic groups introduced in the polymer. The sulfonated polyarylene is also disclosed. The invention further provides a polyarylene and an aromatic sulfonate derivative that are suitably employed in the above production method. Also provided are a macromolecular solid electrolyte that comprises the sulfonated polyarylene, and a proton conductive membrane. The aromatic sulfonate derivative has the following formula (1): wherein X is a halogen atom other than fluorine, a -OSO 3 CH 3 group or a -OSO 3 CF 3 group; Y is a divalent organic group; A is -(CH 2 ) m - or -(CF 2 ) m - (wherein m is an integer of 1 to 10); and R is a C 4-20 hydrocarbon group. The production method of sulfonated polyarylene comprises coupling polymerization of an aromatic compound that includes at least the aromatic sulfonate derivative of the formula (1) and hydrolysis of the resultant polyarylene.