摘要:
A process for producing a polymer electrolyte emulsion having the following steps (1) and (2) is provided. Step (1): a step of dissolving a polymer electrolyte in a solvent comprising a good solvent for the polymer electrolyte to prepare a polymer electrolyte solution having a polymer electrolyte concentration of 0.1 to 10% by weight. Step (2): a step of mixing the polymer electrolyte solution 10 obtained in the step (1), and a poor solvent for the polymer electrolyte at a ratio of 4 to 99 parts by weight of the poor solvent based on 1 part by weight of the polymer electrolyte solution. In addition, a process for producing a polymer 15 electrolyte emulsion comprising separating a polymer electrolyte dispersion in which a polymer electrolyte particle is dispersed in a dispersing medium, with a membrane is provided.
摘要:
A polymer electrolyte emulsion wherein a polymer electrolyte particle is dispersed in a dispersing medium, wherein a polymer electrolyte contained in the polymer electrolyte particle is a block copolymer consisting of a segment having an acidic group and a segment without substantially ion exchange group, is provided.
摘要:
Provided is a polymer electrolyte emulsion, wherein a polymer electrolyte particle is dispersed in a dispersing medium, a zeta potential at the measurement temperature of 25° C. being in a range of −50 mV to −300 mV.Also, provided is a polymer electrolyte emulsion, wherein a polymer electrolyte particle is dispersed in a dispersing medium, an ion exchange capacity of a solid material obtained by removing a volatile substance from the polymer electrolyte emulsion being 1.5 to 3.0 meq/g.
摘要:
A process for producing a polymer electrolyte emulsion having the following steps (1) and (2) is provided. Step (1): a step of dissolving a polymer electrolyte in a solvent comprising a good solvent for the polymer electrolyte to prepare a polymer electrolyte solution having a polymer electrolyte concentration of 0.1 to 10% by weight. Step (2): a step of mixing the polymer electrolyte solution obtained in the step (1), and a poor solvent for the polymer electrolyte at a ratio of 4 to 99 parts by weight of the poor solvent based on 1 part by weight of the polymer electrolyte solution. In addition, a process for producing a polymer electrolyte emulsion comprising separating a polymer electrolyte dispersion in which a polymer electrolyte particle is dispersed in a dispersing medium, with a membrane is provided.
摘要:
The present invention is a copolymer obtained by condensation, a condensation reaction of a leaving group and a nucleophilic group, of a mixture of the following (A) and (C) with a mixture of (B) and (D), or of a mixture of (A), (B), (C) and (D): (A) a monomer having two leaving groups and further at least one acid group in a molecule; (B) a monomer having two nucleophilic groups and further at least one acid group in a molecule; (C) a monomer having two leaving groups and substantially no acid group in a molecule; and (D) a monomer having two nucleophilic groups and substantially no acid group in a molecule.
摘要:
A polymer electrolyte satisfying both of proton conductivity and chemical stability such as water resistance at a high level that is preferable as the polymer electrolyte for fuel cells and the like is provided. The invention includes a block copolymer comprising one or more segments having an ion exchange group and one or more segments having substantially no ion exchange group, wherein at least one of the segments having an ion exchange groupis the segment represented by the following general formula (1A), (1B) or (1C): and the segment has ion exchange group density of 4.0 meq/g or more, and the segments having substantially no ion exchange groupis the segment represented by the following general formula (2):
摘要:
A crosslinked aromatic polymer which is produced by a process comprising a reaction step of reacting an aromatic monomer having an ion exchange group of the following general formula (1) and a poly-functional aromatic monomer of the following general formula (2) in a solvent, thereby generating a gel swollen with the solvent: wherein, in the formulae, Ar1 represents a (2+n)-valent aromatic group, Ar2 represents a (3+p)-valent aromatic group, Q represents an ion exchange group, X1 represents a functional group condensable with X1 or X2, X2 represents a functional group condensable with X1 or X2, n represents an integer of 1 or more, p represents an integer of 0 or more, and in this connection a plurality of X1's and X2's may be the same as or different from each other, respectively.
摘要:
A polymer electrolyte satisfying both of proton conductivity and chemical stability such as water resistance at a high level that is preferable as the polymer electrolyte for fuel cells and the like is provided. The invention includes a block copolymer comprising one or more segments having an ion exchange group and one or more segments having substantially no ion exchange group, wherein at least one of the segments having an ion exchange groupis the segment represented by the following general formula (1A), (1B) or (1C): and the segment has ion exchange group density of 4.0 meq/g or more, and the segments having substantially no ion exchange groupis the segment represented by the following general formula (2):