US 2014/0213671 A1 · AROMATIC SULFONIC ACID DERIVATIVE, SULFONIC ACID GROUP-CONTAINING POLYMER, BLOCK CO-POLYMER, POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE MOLDED BODY, AND SOLID POLYMER FUEL CELL

Abstract

Provided are an aromatic sulfonic acid derivative and a sulfonic acid group-containing polymer, each of which has excellent proton conductivity even under low humidification conditions, while having excellent mechanical strength and chemical stability, and enables a solid polymer fuel cell to achieve high output and excellent physical durability when used therein. This aromatic sulfonic acid derivative has a specific structure and is characterized in that a sulfonic acid group is introduced into more than 50% of all the phenyl groups. This sulfonic acid group-containing polymer is characterized by being obtained by polymerization using the aromatic sulfonic acid derivative, and is also characterized by having a specific structure.

Claims23

Dependent claims

A compound comprising an aromatic sulfonic acid derivatives, as represented by formula (M1), wherein a sulfonic acid group is contained in more than 50% of all phenyl groups:

wherein, in the formula (M1), n1 is an integer of 1 or greater;
a1 to a4 are each an integer of 0 or greater;
M's are independently a hydrogen, a metal cation, an ammonium cation, or a hydrocarbon group with a carbon number of 1 to 20;
X1's are independently a halogen atom;
Y1 is an electron-withdrawing group;
and Z1 is an electron-withdrawing group, —O—, —S—, or direct bonding.

3 more elements

A block copolymer comprising one or more segments (A1) containing an ionic group and one or more segments (A2) containing no ionic group, wherein the segments (A1) comprises a constituent unit as represented by formula (S1):

wherein, in the formula (S1), X4 is an ionic group;
c1 is an integer of 1 or greater;
Y4 is an electron-withdrawing group;
and Z4 is an electron-withdrawing group, —O—, —S—, or direct bonding;
X4, c1, Y4, and Z4 each represent one group or number or a plurality of different groups or numbers;
and * indicates bonding sites to constituent units as represented by the formula (S1) or to other constituent units.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/130,300Filed 27 Jun 2012

Priority

JP 2011-14261328 Jun 2011

Published

31 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification20 codes

H01M 8/1032
Characterised by the chemical structure of the main chain of the ion-conducting polymer: having sulfur, e.g. sulfonated-polyethersulfones [S-PES]
C07C 309/44
Having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton: containing doubly-bound oxygen atoms bound to the…
C07C 309/60
Containing carboxyl groups bound to the carbon skeleton: the carbon skeleton being further substituted by singly-bound oxygen atoms
C07C 317/22
Having sulfone or sulfoxide groups and singly-bound oxygen atoms bound to the same carbon skeleton: with sulfone or sulfoxide groups bound to…

Aromatic sulfonic acid derivative, sulfonic acid group-containing polymer, block co-polymer, polymer electrolyte material, polymer electrolyte molded body, and solid polymer fuel cell

Life of this patent

Aromatic sulfonic acid derivative, sulfonic acid group-containing polymer, block co-polymer, polymer electrolyte material, polymer electrolyte molded body, and solid polymer fuel cell

Life of this patent

Abstract

Claims23