Sulfonated poly(arylene sulfone), crosslinked material thereof, clay nanocomposite including the same, and fuel cell including the same
View Patent ↗A sulfonated poly(arylene sulfone) contains an unsaturated bond. A cross-linked material may be formed from the sulfonated poly(arylene sulfone), and a clay nanocomposite may include the sulfonated poly(arylene sulfone) or the cross-linked material. A fuel cell includes the clay nanocomposite.
1. A sulfonated poly(arylene sulfone) comprising a first repeating unit represented by Formula 1A below, a second repeating unit represented by Formula 1B below, a third repeating unit represented by Formula 1C below, and a fourth repeating unit represented by Formula 1D below:
where R 1 s are the same as or different from each other, and are a C1-C10 alkyl group, a C2-C10 alkenyl group, a phenyl group, or a nitro group,
p is an integer in the range of 0 to 4,
R 2 is hydrogen, a methyl group or an ethyl group,
R 3 is a C2-C10 alkenyl group,
M is Na, K, or H, and
k is in the range of about 0.1 to about 0.9 mole, m is in the range of about 0.1 to about 0.9 mole, and the sum of n and o is in the range of about 0.1 to about 0.5 mole.
2. The sulfonated poly(arylene sulfone) of claim 1 , wherein a polymerization degree of the sulfonated poly(arylene sulfone) is in the range of about 5 to about 3,500.
3. The sulfonated poly(arylene sulfone) of claim 1 , wherein n is in the range of about 0.01 to about 0.3 mole, and o is in the range of about 0.2 to about 0.49 mole.
4. The sulfonated poly(arylene sulfone) of claim 1 , wherein the sulfonated poly(arylene sulfone) is represented by Formula 2 below:
where k is in the range of about 0.1 to about 0.5 mole, m is in the range of about 0.1 to about 0.5 mole, the sum of n and o is in the range of about 0.2 to about 0.5, and l is an integer in the range of 5 to 3,500.
5. The sulfonated poly(arylene sulfone) of claim 1 , wherein a mixing molar ratio of k and m is in the range of about 1:9 to about 5:5.
6. The sulfonated poly(arylene sulfone) of claim 1 , wherein a sulfonation degree of the sulfonated poly(arylene sulfone) is in the range of about 10 to about 50%.
7. A cross-linked sulfonated poly(arylene sulfone) that is a product of a cross-linking reaction of the sulfonated poly(arylene sulfone) comprising a first repeating unit represented by Formula 1A below, a second repeating unit represented by Formula 1B below, a third repeating unit represented by Formula 1C below, and a fourth repeating unit represented by Formula 1D below:
where R 1 s are the same as or different from each other, and are a C1-C10 alkyl group, a C2-C10 alkenyl group, a phenyl group, or a nitro group,
p is an integer in the range of 0 to 4,
R 2 is hydrogen, a methyl group or an ethyl group,
R 3 is a C2-C10 alkenyl group,
M is Na, K, or H, and
k is in the range of about 0.1 to about 0.9 mole, m is in the range of about 0.1 to about 0.9 mole, and the sum of n and o is in the range of about 0.1 to about 0.5 mole.
8. The cross-linked sulfonated poly(arylene sulfone) of claim 7 , wherein a polymerization degree of the sulfonated poly(arylene sulfone) is in the range of about 5 to about 3,500.
9. The cross-linked sulfonated poly(arylene sulfone) of claim 7 , wherein n is in the range of about 0.01 to about 0.3 mole, and o is in the range of about 0.2 to about 0.49 mole.
10. The cross-linked sulfonated poly(arylene sulfone) of claim 7 , wherein the product of the cross-lining reaction of the sulfonated poly(arylene sulfone) is obtained by a cross-linking reaction between molecules of sulfonated poly(arylene sulfone), or a cross-linking reaction between a molecule of sulfonated poly(arylene sulfone) and a polyfunctional compound.
11. The cross-linked sulfonated poly(arylene sulfone) of claim 10 , wherein the polyfunctional compound is at least one selected from the group consisting of bisphenol A ethoxylate diacrylate, triethyleneglycol divinylether, hexanedioldiacrylate, and mixtures thereof.
12. The cross-linked sulfonated poly(arylene sulfone) of claim 10 , wherein an amount of the polyfunctional compound is in the range of about 5 to about 50 parts by weight based on 100 parts by weight of the sulfonated poly(arylene sulfone).
13. The cross-linked sulfonated poly(arylene sulfone) of claim 7 , wherein a mixing molar ratio k and m is in the range of about 1:9 to about 5:5.
14. The cross-linked sulfonated poly(arylene sulfone) of claim 7 , wherein a sulfonation degree of the sulfonated poly(arylene sulfone) is in the range of about 10 to about 50%.
15. A clay-sulfonated poly(arylene sulfone) nanocomposite comprising:
the sulfonated poly(arylene sulfone) of claim 1 ; and
an unmodified clay.
16. The clay-sulfonated poly(arylene sulfone) nanocomposite of claim 15 , wherein the sulfonated poly(arylene sulfone) is represented by Formula 2 below:
where k is in the range of about 0.1 to about 0.5 mole, m is in the range of about 0.1 to about 0.5 mole, the sum of n and o is in the range of about 0.2 to about 0.5, and l is an integer in the range of 5 to 3500.
17. A clay-sulfonated poly(arylene sulfone) nanocomposite comprising:
the cross-linked sulfonated poly(arylene sulfone) of claim 7 ; and
an unmodified clay.
18. The clay-sulfonated poly(arylene sulfone) nanocomposite of claim 15 , wherein the polyfunctional compound is at least one selected from the group consisting of bisphenol A ethoxylate diacrylate, triethyleneglycol divinylether, hexanedioldiacrylate, and mixtures thereof.
19. A fuel cell comprising:
a cathode;
an anode; and
an electrolyte membrane interposed between the cathode and the anode,
wherein the electrolyte membrane comprises the sulfonated poly(arylene sulfone) of claim 1 .
20. A fuel cell comprising:
a cathode;
an anode; and
an electrolyte membrane interposed between the cathode and the anode,
wherein the electrolyte membrane comprises the cross-linked sulfonated poly(arylene sulfone) of claim 7 .
21. A fuel cell comprising:
a cathode;
an anode; and
an electrolyte membrane interposed between the cathode and the anode,
wherein the electrolyte membrane comprises the clay-sulfonated poly(arylene sulfone) nanocomposite of claim 15 .
22. A fuel cell comprising:
a cathode;
an anode; and
an electrolyte membrane interposed between the cathode and the anode,
wherein the electrolyte membrane comprises the clay-sulfonated poly(arylene sulfone) nanocomposite of claim 17 .