Anion exchange resin, electrolyte membrane for fuel cell, binder for forming electrode catalyst layer, battery electrode catalyst layer and fuel cell

Patent metadata

Field	Value
Publication number	US-9931624-B2
Application number	US-201515126910-A
Country	US
Kind code	B2
Filing date	Feb 28, 2015
Priority date	Mar 17, 2014
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

An anion exchange resin having a hydrophobic unit with divalent hydrophobic groups bonded to each other via an ether bond, the divalent hydrophobic groups being composed of one aromatic ring, or being composed of a plurality of aromatic rings which are bonded to each other via a divalent hydrocarbon group, carbon-carbon bond or the like; and a hydrophilic unit having divalent hydrophilic groups bonded to each other via carbon-carbon bond, the divalent hydrophilic groups being composed of one aromatic ring, or being composed of a plurality of aromatic rings which are bonded to each other via a divalent hydrocarbon group or carbon-carbon bond, the aromatic ring or at least one of the aromatic rings having an anion exchange group are bonded via carbon-carbon bond.

First claim

What is claimed is:

1. An anion exchange resin comprising:
divalent hydrophobic groups being composed of one aromatic ring, or being composed of a plurality of aromatic rings which are bonded to each other via a divalent hydrocarbon group, a divalent silicon-containing group, a divalent nitrogen-containing group, a divalent phosphorus-containing group, a divalent oxygen-containing group, a divalent sulfur-containing group, or carbon-carbon bond; and
divalent hydrophilic groups being composed of one aromatic ring, or being composed of a plurality of aromatic rings which are bonded to each other via a divalent hydrocarbon group or carbon-carbon bond, the aromatic ring or at least one of the aromatic rings having an anion exchange group;
wherein the divalent hydrophobic groups are bonded to each other via an ether bond to form a hydrophobic unit;
wherein the divalent hydrophilic groups are bonded to each other via carbon-carbon bond to form a hydrophilic unit; and
wherein the hydrophobic unit and the hydrophilic unit are bonded via carbon-carbon bond, wherein each of the hydrophobic groups has a bisphenol residue or a bisphenol residue substituted with a halogen atom or an alkyl group of formula (1):

wherein R is a hydrocarbon group, a hydrocarbon group substituted with a halogen atom, a silicon-containing group, a silicon-containing group substituted with a halogen atom, a nitrogen-containing group, a nitrogen-containing group substituted with a halogen atom, a phosphorus-containing group, a phosphorus-containing group substituted with a halogen atom, an oxygen-containing group, an oxygen-containing group substituted with a halogen atom, a sulfur-containing group, a sulfur-containing group substituted with a halogen atom, or direct bond; wherein each Alk is the same or a different alkyl group; wherein each X is the same or a different halogen atom or cyano group; and wherein a, b, c, and d are the same or a different integer from 0 to 4, and
wherein each of the hydrophilic groups is: a bisphenol fluorene residue substituted with a substituent group having the anion exchange group of formula (3):

wherein each A is —CH 2 N + (CH 3 ) 3 OH − as an anion exchange group; wherein s, t, u, and v are the same or a different integer from 0 to 4; and at least one of s, t, u, and v is an integer from 1 to 4 and/or an o-, m- or p-phenylene group substituted with a substituent group having the anion exchange group, of formula (3′):

wherein A is —CH 2 N + (CH 3 ) 3 OH − as an anion exchange group; and s is an integer from 1 to 4.

2. An electrolyte membrane for a fuel cell comprising the anion exchange resin according to claim 1 .

3. A binder for forming an electrode catalyst layer comprising the anion exchange resin according to claim 1 .

Assignees

• Takahata Prec Japan Co Ltd
• Univ Yamanashi

Inventors

• Yokota Naoki
• Shimada Manai
• Miyatake Kenji
• Watanabe Masahiro
• Miyake Junpei
• Nishino Eriko
• Asazawa Koichiro

Classifications

• C08G2261/516

  ion-conductive · CPC title

• H01M8/1067

  characterised by their physical properties, e.g. porosity, ionic conductivity or thickness · CPC title

• C08G2261/146

  Side-chains containing halogens · CPC title

• B01J41/13 Primary

  obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds · CPC title

• B01J41/04

  Processes using organic exchangers · CPC title