New polymer and anion exchange membrane comprising same
AssigneeHanwha Solutions Corporation
InventorsDu Yeol RYU, Jong Hak KIM, Seungbae JEON, Jinhee KIM
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Abstract
A novel polymer and an anion exchange membrane contains the novel polymer are disclosed. The anion exchange membrane has improved ion conductivity and durability. A method for producing the polymer is also disclosed. The novel polymer is represented by the following Chemical Formula 1:
Claims20
A polymer comprising a crosslinked structure represented by the following Chemical Formula 1:
- wherein, in Chemical Formula 1,
- R1 and R2 are each independently halogen or a C1-4 alkyl,
- a and b are each independently an integer from 0 to 3,
- R3 and R4 are each independently hydrogen or a C1-4 alkyl,
- R5 is a C1-10 alkyl,
- R6 to R9 are each independently a C1-4 alkyl,
- L is a C1-10 alkylene,
- Q is halogen,
- n is an integer from 1 to 3, and
- x, y and z each means the mole fraction of each repeating unit in the polymer, and
- x
- +
- y
- +
- z
- =
- 1
- .
A method for producing a polymer comprising a crosslinked structure represented by the following Chemical Formula 1, the method comprising the steps of:
- reacting a first polymer, which is an A-B-C triblock copolymer represented by the following Chemical Formula 1-1, with a hydrogen halide to produce a second polymer, which is an A-B′-C triblock copolymer represented by the following Chemical Formula 1-2 (step 1);
- reacting a second polymer represented by the following Chemical Formula 1-2 with an alkene represented by the following Chemical Formula 1a to produce a third polymer, which is an A-B″-C triblock copolymer represented by the following Chemical Formula 1-3 (step 2);
- and
- reacting a third polymer represented by the following Chemical Formula 1-3 with a diamine represented by the following Chemical Formula 1b to produce a polymer comprising a crosslinked structure represented by the following Chemical Formula 1 (step 3):
- wherein, in Chemical Formulas 1, 1-1 to 1-3, 1a and 1b,
- R1 and R2 are each independently halogen or a C1-4 alkyl,
- a and b are each independently an integer from 0 to 3,
- R3 and R4 are each independently hydrogen or a C1-4 alkyl,
- R5 is a C1-10 alkyl,
- R6 to R9 are each independently a C1-4 alkyl,
- L is a C1-10 alkylene,
- Q is halogen,
- n is an integer from 1 to 3, and
- x, y and z each means the mole fraction of each repeating unit in the polymer, and x+y+z=1.
(canceled)
A method for producing an anion exchange membrane, the method comprising the steps of:
- reacting a third polymer represented by the following Chemical Formula 1-3 with a diamine represented by the following Chemical Formula 1b in an organic solvent to produce a polymer solution comprising a crosslinked structure represented by the following Chemical Formula 1 (step 1);
- and
- casting the polymer solution onto a substrate and then drying the casted film (step 2).
- wherein, in Chemical Formulas 1, 1-3 and 1b,
- R1 and R2 are each independently halogen or a C1-4 alkyl,
- a and b are each independently an integer from 0 to 3,
- R3 and R4 are each independently hydrogen or a C1-4 alkyl,
- R5 is a C1-10 alkyl,
- R6 to R9 are each independently a C1-4 alkyl,
- L is a C1-10 alkylene,
- Q is halogen,
- n is an integer from 1 to 3, and
- x, y and z each means the mole fraction of each repeating unit in the polymer, and x+y+z=1.
Dependencies are inferred from the claim text.