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