Novel aromatic sulfonic acid ester derivative, polyarylene, polyarylene having sulfonic acid group and process for producing the same, and polymer solid electrolyte and proton-conductive membrane
申请人:JSR Corporation
公开号:US20040044166A1
公开(公告)日:2004-03-04
Disclosed is an aromatic sulfonic acid ester derivative represented by the formula (1);
1
in the formula, X is an atom or a group selected from a halogen atom excluding fluorine, —OSO
3
CH
3
and —OSO
3
CF
3
, A is a divalent electron attractive group, B is a divalent electron donating group or a direct bonding, R
a
is a hydrocarbon group of 1 to 20 carbon atoms, Ar is an aromatic group having a substituent of —SO
3
R
b
(wherein R
b
is a hydrocarbon group of 1 to 20 carbon atoms), m is an integer of 0 to 10, n is an integer of 0 to 10 and k is an integer of 1 to 4. Also disclosed is a process for producing a polyarylene having a sulfonic acid group, which process comprises the steps of coupling polymerization of an aromatic compound containing the derivative of the formula (1), to prepare a polyarylene and hydrolysis of the polyarylene, and which process has high safety and is easily capable of controlling the amount of sulfonoc acid group introduced into a polymer and the introducing position thereof.
A polymer electrolyte fuel cell consists of plural units, and the unit has an anode side separator, an anode diffusion layer, an anode catalytic layer, polymer electrolyte membrane, a cathode catalytic layer, a cathode diffusion layer, and a cathode side separator. The cathode catalytic layer further includes a catalyst in which platinum or platinum alloy is supported on a carbon supporting body having an average lattice space d002 of [002] surface of 0.338 to 0.355 nm and specific surface area of the supporting body of 80 to 250 m
2
/g, electrolyte containing ion exchange resin, and vapor grown carbon fiber. Furthermore, a water holding layer containing ion exchange resin, carbon particles, and vapor grown carbon fiber is arranged at an interface of the cathode diffusion layer and the cathode catalytic layer.
Aromatic sulfonic acid ester derivative, polyarylene, polyarylene having sulfonic acid group and process for producing the same, and polymer solid electrolyte and proton-conductive membrane
申请人:JSR Corporation
公开号:US07163988B2
公开(公告)日:2007-01-16
Disclosed is an aromatic sulfonic acid ester derivative represented by the formula (1);
in the formula, X is an atom or a group selected from a halogen atom excluding fluorine, —OSO3CH3 and —OSO3CF3, A is a divalent electron attractive group, B is a divalent electron donating group or a direct bonding, Ra is a hydrocarbon group of 1 to 20 carbon atoms, Ar is an aromatic group having a substituent of —SO3Rb (wherein Rb is a hydrocarbon group of 1 to 20 carbon atoms), m is an integer of 0 to 10, n is an integer of 0 to 10 and k is an integer of 1 to 4. Also disclosed is a process for producing a polyarylene having a sulfonic acid group, which process comprises the steps of coupling polymerization of an aromatic compound containing the derivative of the formula (1), to prepare a polyarylene and hydrolysis of the polyarylene, and which process has high safety and is easily capable of controlling the amount of sulfonoc acid group introduced into a polymer and the introducing position thereof.