Crosslinked copolymer, polymer membrane comprising the same, and anion exchange membrane comprising the polymer membrane
AssigneeHanwha Solutions Corporation
InventorsTae-Hyun KIM, Kyungwhan MIN, Insu JEONG, Yerim LEE, Jiyong CHOI
Life of this patent
Estimating the term…
Abstract
A novel cross-linked copolymer is disclosed. The novel cross-linked copolymer can be preferably used as an anion exchange membrane (AEM) material for fuel cells because of its excellent mechanical properties, excellent alkaline stability, and high ionic conductivity and hydration. A polymer membrane containing the novel cross-linked copolymer and a method for preparing the novel cross-linked copolymer are disclosed.
Claims13
A crosslinked copolymer comprising a first chain represented by the following Chemical Formula 1 and a second chain represented by the following Chemical Formula 2, wherein the first chain and the second chain are crosslinked with each other:
- in Chemical Formula 1,
- * is a bonding position with Chemical Formula 2,
- a sum of q1, q2, q5, and q6 is an integer of 100 to 1,000,
- a sum of q3 and q4 is an integer of 150 to 2,000,
- a and b are each independently an integer of 3 to 10, and
- R1 to R4 are each independently hydrogen or —(CH2)p—CH3, wherein p is an integer of 0 to 5,
- in Chemical Formula 2,
- * is a bonding position with Chemical Formula 1,
- x and y are each independently an integer of 0 to 10, and
- n is an integer of 10 to 1000.
A method for preparing a crosslinked copolymer comprising the steps of:
- (a) preparing a polymer represented by the following Chemical Formula 1-1;
- (b) preparing a polymer represented by the following Chemical Formula 2-1;
- and
- (c) preparing a crosslinked copolymer by crosslinking the polymer represented by the following Chemical Formula 1-1 and the polymer represented by the following Chemical Formula 2-1:
- in Chemical Formula 1-1,
- a sum of q1, q2, q5, and q6 is an integer of 100 to 1,000,
- a sum of q3 and q4 is an integer of 150 to 2,000,
- a and b are each independently an integer of 3 to 10,
- R1 to R4 are each independently hydrogen or —(CH2)p—CH3, wherein p is an integer of 0 to 5, and
- X1 and X2 are each independently a halogen group,
- in Chemical Formula 2-1,
- x and y are each independently an integer of 0 to 10, and
- n is an integer of 10 to 1000.
Dependencies are inferred from the claim text.