Poly(arylene ether) copolymers containing pyridine units as proton exchange membranes
AssigneeAdvent Technologies
InventorsMaria Geormezi, Valadoula Deimede, Nora Gourdoupi, Joannis Kallitsis
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Abstract
The subject invention relates to the development and characterization of a new series of poly (arylene ether) copolymers containing pyridine and biphenyl or hydroquinone moieties. Preferred polymers can exhibit very good mechanical properties, high thermal and oxidative stability and high doping ability with strong acids. The invention further relates to the preparation and application of MEA on PEMFC type single cells.
Claims41
A method for the preparation of co-polymer electrolytes, the method comprising:
- (a) reacting one or more aromatic pyridine monomers, wherein the aromatic pyridine monomer comprises at least one hydroxyl group, with another monomer selected from an aromatic pyridine monomer, or an aryl monomer, wherein the aromatic pyridine monomer or aryl monomer comprises a hydroxyl group, to form an aromatic pyridine polyether;
- (b) reacting the aromatic pyridine polyether with one or more aromatic difluoride compounds to form a co-polymer electrolyte, wherein the co-polymer contains biphenol and/or hydroquinone moieties.
A polymer composition obtained by a method comprising:
- (a) reacting one or more aromatic pyridine monomers, wherein the aromatic pyridine monomer comprises at least one hydroxyl group, with another monomer selected from an aromatic pyridine monomer, or an aryl monomer, wherein the aromatic pyridine monomer or aryl monomer comprises a hydroxyl group, to form an aromatic pyridine polyether;
- (b) reacting the aromatic pyridine polyether with one or more aromatic difluoride compounds to form a co-polymer electrolyte, wherein the co-polymer contains biphenol and/or hydroquinone moieties.
A polymer composition, comprising a co-polymer of formula I:
- wherein the co-polymer contains biphenol and/or hydroquinone moieties and
- each X is independently the same or different moieties and are selected from biphenylene sulfone, octafluorobiphenylene, benzophenone, or biphenylene phenylphosphine oxide;
- each Y is independently the same or different or absent, and is selected from substituted or unsubstituted alkylene groups, substituted or unsubstituted aromatic groups, C(O), O, or S(O)q,
- wherein such alkylene and aromatic groups may be further substituted
- with C(O), O, or S(O)q;
- q is 0, 1, or 2;
- and
- n and p are each independently about 10% to about 90%, wherein n+p=100%.
A polymer composition, comprising a co-polymer of formula II:
- wherein the co-polymer contains biphenol and/or hydroquinone moieties and
- each X is independently the same or different moieties and are selected from biphenylene sulfone, octafluorobiphenylene, benzophenone, or biphenylene phenylphosphine oxide;
- each Y is independently the same or different or absent, and is selected from substituted or unsubstituted alkylene groups, substituted or unsubstituted aromatic groups, C(O), O, or S(O)q,
- wherein such alkylene and aromatic groups may be further substituted
- with C(O), O, or S(O)q;
- q is 0, 1, or 2;
- and
- n and p are each independently about 10% to about 90%, wherein n+p=100%.
A polymer composition, comprising a co-polymer of formula III:
- wherein the co-polymer contains biphenol and/or hydroquinone moieties and
- each X is independently the same or different moieties and are selected from biphenylene sulfone, octafluorobiphenylene, benzophenone, or biphenylene phenylphosphine oxide;
- each Y is independently the same or different or absent, and is selected from substituted or unsubstituted alkylene groups, substituted or unsubstituted aromatic groups, C(O), O, or S(O)q,
- wherein such alkylene and aromatic groups may be further substituted
- with C(O), O, or S(O)q;
- q is 0, 1, or 2;
- and
- n and p are each independently about 10% to about 90%, wherein n+p=100%.
Dependencies are inferred from the claim text.