JP3645558B2 - 側鎖に酸基を有するプロトン伝導性高分子、その製造方法、前記プロトン伝導性高分子を用いた高分子膜及びこれを用いた燃料電池 - Google Patents
側鎖に酸基を有するプロトン伝導性高分子、その製造方法、前記プロトン伝導性高分子を用いた高分子膜及びこれを用いた燃料電池 Download PDFInfo
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- JP3645558B2 JP3645558B2 JP2003271633A JP2003271633A JP3645558B2 JP 3645558 B2 JP3645558 B2 JP 3645558B2 JP 2003271633 A JP2003271633 A JP 2003271633A JP 2003271633 A JP2003271633 A JP 2003271633A JP 3645558 B2 JP3645558 B2 JP 3645558B2
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- BEKFRNOZJSYWKZ-UHFFFAOYSA-N 4-[2-(4-aminophenyl)-1,1,1,3,3,3-hexafluoropropan-2-yl]aniline Chemical compound C1=CC(N)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(N)C=C1 BEKFRNOZJSYWKZ-UHFFFAOYSA-N 0.000 description 1
- ZYEDGEXYGKWJPB-UHFFFAOYSA-N 4-[2-(4-aminophenyl)propan-2-yl]aniline Chemical compound C=1C=C(N)C=CC=1C(C)(C)C1=CC=C(N)C=C1 ZYEDGEXYGKWJPB-UHFFFAOYSA-N 0.000 description 1
- DSUFPYCILZXJFF-UHFFFAOYSA-N 4-[[4-[[4-(pentoxycarbonylamino)cyclohexyl]methyl]cyclohexyl]carbamoyloxy]butyl n-[4-[[4-(butoxycarbonylamino)cyclohexyl]methyl]cyclohexyl]carbamate Chemical compound C1CC(NC(=O)OCCCCC)CCC1CC1CCC(NC(=O)OCCCCOC(=O)NC2CCC(CC3CCC(CC3)NC(=O)OCCCC)CC2)CC1 DSUFPYCILZXJFF-UHFFFAOYSA-N 0.000 description 1
- HWKHQQCBFMYAJZ-UHFFFAOYSA-N 4-amino-n-(3-aminophenyl)benzamide Chemical compound C1=CC(N)=CC=C1C(=O)NC1=CC=CC(N)=C1 HWKHQQCBFMYAJZ-UHFFFAOYSA-N 0.000 description 1
- XPAQFJJCWGSXGJ-UHFFFAOYSA-N 4-amino-n-(4-aminophenyl)benzamide Chemical compound C1=CC(N)=CC=C1NC(=O)C1=CC=C(N)C=C1 XPAQFJJCWGSXGJ-UHFFFAOYSA-N 0.000 description 1
- WXNZTHHGJRFXKQ-UHFFFAOYSA-N 4-chlorophenol Chemical compound OC1=CC=C(Cl)C=C1 WXNZTHHGJRFXKQ-UHFFFAOYSA-N 0.000 description 1
- MBJAPGAZEWPEFB-UHFFFAOYSA-N 5-amino-2-(4-amino-2-sulfophenyl)benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC(N)=CC=C1C1=CC=C(N)C=C1S(O)(=O)=O MBJAPGAZEWPEFB-UHFFFAOYSA-N 0.000 description 1
- LVNDUJYMLJDECN-UHFFFAOYSA-N 5-methylbenzene-1,3-diamine Chemical compound CC1=CC(N)=CC(N)=C1 LVNDUJYMLJDECN-UHFFFAOYSA-N 0.000 description 1
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 1
- 0 CC(C)(C)c(c(OCC(c1ccccc1)c1ccccc1)c1)ccc1-c(cc1)cc(OCC(c2ccccc2)C2=CC=CC(C)(*)C=C2)c1N(C(C1(C)C2=CC(C(c3cc(C(N(C4)C(C)(C)C)=O)c4cc3)=O)=CC1)=O)C2=O Chemical compound CC(C)(C)c(c(OCC(c1ccccc1)c1ccccc1)c1)ccc1-c(cc1)cc(OCC(c2ccccc2)C2=CC=CC(C)(*)C=C2)c1N(C(C1(C)C2=CC(C(c3cc(C(N(C4)C(C)(C)C)=O)c4cc3)=O)=CC1)=O)C2=O 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- XIWMTQIUUWJNRP-UHFFFAOYSA-N amidol Chemical compound NC1=CC=C(O)C(N)=C1 XIWMTQIUUWJNRP-UHFFFAOYSA-N 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000005604 azodicarboxylate group Chemical group 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- ZVSKZLHKADLHSD-UHFFFAOYSA-N benzanilide Chemical compound C=1C=CC=CC=1C(=O)NC1=CC=CC=C1 ZVSKZLHKADLHSD-UHFFFAOYSA-N 0.000 description 1
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical group C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- LWEOTFCVNBWNSE-UHFFFAOYSA-N bis(3-aminophenyl)methanol Chemical compound NC1=CC=CC(C(O)C=2C=C(N)C=CC=2)=C1 LWEOTFCVNBWNSE-UHFFFAOYSA-N 0.000 description 1
- TUQQUUXMCKXGDI-UHFFFAOYSA-N bis(3-aminophenyl)methanone Chemical compound NC1=CC=CC(C(=O)C=2C=C(N)C=CC=2)=C1 TUQQUUXMCKXGDI-UHFFFAOYSA-N 0.000 description 1
- MABRBBOPUASAAI-UHFFFAOYSA-N bis(4-aminophenyl)methanol Chemical compound C1=CC(N)=CC=C1C(O)C1=CC=C(N)C=C1 MABRBBOPUASAAI-UHFFFAOYSA-N 0.000 description 1
- ZLSMCQSGRWNEGX-UHFFFAOYSA-N bis(4-aminophenyl)methanone Chemical compound C1=CC(N)=CC=C1C(=O)C1=CC=C(N)C=C1 ZLSMCQSGRWNEGX-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- QILSFLSDHQAZET-UHFFFAOYSA-N diphenylmethanol Chemical compound C=1C=CC=CC=1C(O)C1=CC=CC=C1 QILSFLSDHQAZET-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- IREPGQRTQFRMQR-UHFFFAOYSA-N furantetracarboxylic acid Chemical compound OC(=O)C=1OC(C(O)=O)=C(C(O)=O)C=1C(O)=O IREPGQRTQFRMQR-UHFFFAOYSA-N 0.000 description 1
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- KADGVXXDDWDKBX-UHFFFAOYSA-N naphthalene-1,2,4,5-tetracarboxylic acid Chemical compound OC(=O)C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC(C(O)=O)=C21 KADGVXXDDWDKBX-UHFFFAOYSA-N 0.000 description 1
- OBKARQMATMRWQZ-UHFFFAOYSA-N naphthalene-1,2,5,6-tetracarboxylic acid Chemical compound OC(=O)C1=C(C(O)=O)C=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 OBKARQMATMRWQZ-UHFFFAOYSA-N 0.000 description 1
- OLAPPGSPBNVTRF-UHFFFAOYSA-N naphthalene-1,4,5,8-tetracarboxylic acid Chemical compound C1=CC(C(O)=O)=C2C(C(=O)O)=CC=C(C(O)=O)C2=C1C(O)=O OLAPPGSPBNVTRF-UHFFFAOYSA-N 0.000 description 1
- DOBFTMLCEYUAQC-UHFFFAOYSA-N naphthalene-2,3,6,7-tetracarboxylic acid Chemical compound OC(=O)C1=C(C(O)=O)C=C2C=C(C(O)=O)C(C(=O)O)=CC2=C1 DOBFTMLCEYUAQC-UHFFFAOYSA-N 0.000 description 1
- YTVNOVQHSGMMOV-UHFFFAOYSA-N naphthalenetetracarboxylic dianhydride Chemical compound C1=CC(C(=O)OC2=O)=C3C2=CC=C2C(=O)OC(=O)C1=C32 YTVNOVQHSGMMOV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- JGGWKXMPICYBKC-UHFFFAOYSA-N phenanthrene-1,8,9,10-tetracarboxylic acid Chemical compound C1=CC=C(C(O)=O)C2=C(C(O)=O)C(C(O)=O)=C3C(C(=O)O)=CC=CC3=C21 JGGWKXMPICYBKC-UHFFFAOYSA-N 0.000 description 1
- WDZOPGZTGVJDMZ-FOCLMDBBSA-N phenyl (ne)-n-phenoxycarbonyliminocarbamate Chemical compound C=1C=CC=CC=1OC(=O)/N=N/C(=O)OC1=CC=CC=C1 WDZOPGZTGVJDMZ-FOCLMDBBSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- VVWRJUBEIPHGQF-UHFFFAOYSA-N propan-2-yl n-propan-2-yloxycarbonyliminocarbamate Chemical compound CC(C)OC(=O)N=NC(=O)OC(C)C VVWRJUBEIPHGQF-UHFFFAOYSA-N 0.000 description 1
- RTHVZRHBNXZKKB-UHFFFAOYSA-N pyrazine-2,3,5,6-tetracarboxylic acid Chemical compound OC(=O)C1=NC(C(O)=O)=C(C(O)=O)N=C1C(O)=O RTHVZRHBNXZKKB-UHFFFAOYSA-N 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- QKSQWQOAUQFORH-UHFFFAOYSA-N tert-butyl n-[(2-methylpropan-2-yl)oxycarbonylimino]carbamate Chemical compound CC(C)(C)OC(=O)N=NC(=O)OC(C)(C)C QKSQWQOAUQFORH-UHFFFAOYSA-N 0.000 description 1
- LUEGQDUCMILDOJ-UHFFFAOYSA-N thiophene-2,3,4,5-tetracarboxylic acid Chemical compound OC(=O)C=1SC(C(O)=O)=C(C(O)=O)C=1C(O)=O LUEGQDUCMILDOJ-UHFFFAOYSA-N 0.000 description 1
- RXJKFRMDXUJTEX-UHFFFAOYSA-N triethylphosphine Chemical compound CCP(CC)CC RXJKFRMDXUJTEX-UHFFFAOYSA-N 0.000 description 1
- LZTRCELOJRDYMQ-UHFFFAOYSA-N triphenylmethanol Chemical compound C=1C=CC=CC=1C(C=1C=CC=CC=1)(O)C1=CC=CC=C1 LZTRCELOJRDYMQ-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1039—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors comprising halogen-containing substituents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1042—Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
- H01B1/12—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances
- H01B1/122—Ionic conductors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Sustainable Energy (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Fuel Cell (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Conductive Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
A2は
A4は、
A5は
前記A 4 および前記A 5 はエーテル結合またはスルフィド結合で結合し、
前記BHは独立してプロトンを有する酸基であって、スルホン酸基、燐酸基またはスルホニル(トリフルオロメチルスルホニル)イミド基から選択される何れか1つであり、
n及びmは等しいかまたは異なる0ないし20の整数であって、n、mの値が同時に0とならず、n/n+m=0〜0.95である。)
(a)ジアミノ単量体とテトラカルボン酸二無水物単量体とを反応させてポリイミドを得る段階
窒素が流れる2口フラスコに3,3’−ジヒドロキシ−4,4’−ジアミノフェニル4.86gを無水N−メチル−ピロリジノン150mLに加えた後、攪拌して透明な溶液を得た。この透明な溶液を氷浴を用いて温度を0℃に下げた後、10gの4,4’−ヘキサフルオロイソプロピリデンビス(ベンゼン1,2−ジカルボキシル)酸二無水物を加え、氷浴を除去して反応溶液全体の温度を室温まで徐々に上げつつ24時間、撹拌した。その後、前記溶液にキシレン30mLを加えた後、溶液の温度を160℃まで高めて3時間反応させた。反応後、前記溶液をメタノール/水溶液に入れて褐色沈殿物を得て、得られた褐色沈殿物をメタノールで数回洗浄した。前記洗浄した沈殿物を再びテトラヒドロフラン(THF)に溶かし、またメタノール/水溶液に入れて褐色沈殿物をさらに得た後、真空オーブンで24時間乾燥させて主鎖がイミド結合よりなるポリイミドを得た。
前述したように得られたポリイミド粉末1.0gをTHF30mLを含むフラスコに入れた後、攪拌して透明な溶液を得た。前記溶液を窒素雰囲気下で30分間攪拌してトリエチルホスフィン1.26gとジフェニルエタノール0.79gとを加えた。次いで、ジエチルアゾジカルボキシレート(DEAD)0.8gをTHF5mLに溶かした溶液を前記溶液に加え、溶液が透明になった後、48時間室温で反応させ、前記溶液をメタノール/水溶液に入れて黄色沈殿物を得た。前述したように得られた黄色沈殿物をメタノールで数回洗浄し、再びTHFに溶かした後にメタノール/水溶液に入れて黄色沈殿物を得た。前記黄色沈殿物を真空オーブンで24時間乾燥させてポリイミド主鎖に芳香族作用基が側鎖に置換された黄色粉末のポリイミド誘導体を得た。
上述の通り得られた黄色粉末2.1gを、THF30mLを含むフラスコに入れた後、攪拌して透明な溶液を製造した後、0.51gの濃い硫酸と0.65gのアセト酸無水物をTHF5mLに加えた溶液を窒素雰囲気下で前記溶液にシリンジを通じて徐々に加えた後、60℃に加熱して8時間反応させた。その後、得られた褐色溶液をメタノール/水混合溶液150mLに徐々に加えて褐色沈殿物を得た後、メタノールで数回洗浄し、真空オーブンで24時間乾燥させて下記化学式2のポリヒドロキシイミドジフェニルスルホネート(PHIDPS)の褐色粉末を得た。下記化学式2において、n/n+m=0.287、数平均分子量89,000、換算重量720であった。
3,3’−ジヒドロキシ−4,4’−ジアミノフェニルの代りに2,5−ジアミノフェノール2.79gを使用したことを除いては、前記実施例1と同じ方法で下記化学式3のプロトン伝導性ポリイミドを製造した。下記化学式3において、n/n+m=0.827、数平均分子量120,000、換算重量620であった。
3,3’−ジヒドロキシ−4,4’−ジアミノフェニルの代りに3,3−メチレンビス(6−アミノフェノール)5.17gを使用したことを除いては、前記実施例1と同じ方法で下記化学式4のプロトン伝導性ポリイミドを製造した。下記化学式4において、n/n+m=0.389、数平均分子量50,000、換算重量900であった。
3,3’−ジヒドロキシ−4,4’−ジアミノフェニルの代りに3,3−ヘキサフルオロイソプロピリデン(6−アミノフェノール)7.56gを使用したことを除いては、前記実施例1と同じ方法で下記化学式5のプロトン伝導性ポリイミドを製造した。下記化学式5において、n/n+m=0.44、数平均分子量70,000、換算重量1010であった。
4,4’−ヘキサフルオロメチレンビス(ベンゼン1,2−ジカルボキシル)酸二無水物の代りにベンゼン1,2,4,5−テトラカルボン酸二無水物4.91gを使用したことを除いては、前記実施例1と同じ方法で下記化学式6のプロトン伝導性ポリイミドを製造した。下記化学式6において、n/n+m=0.51、数平均分子量150,000、換算重量1100であった。
4,4’−ヘキサフルオロメチレンビス(ベンゼン1,2−ジカルボキシル)酸二無水物の代りにナフタレン1,4,5,8−テトラカルボン酸二無水物6.04gを使用したことを除いては、前記実施例1と同じ方法で下記化学式7のプロトン伝導性ポリイミドを製造した。下記化学式7において、n/n+m=0.336、数平均分子量80,000、換算重量800であった。
4,4’−ヘキサフルオロメチレンビス(ベンゼン1,2−ジカルボキシル)酸二無水物の代りに4,4’−カルボニルビス(ベンゼン−1,2−カルボキシル)酸二無水物7.25を使用したことを除いては、前記実施例1と同じ方法で下記化学式8のプロトン伝導性ポリイミドを製造した。下記化学式8において、n/n+m=0.185、数平均分子量230,000、換算重量550であった。
ジフェニルエタノールの代りに9−フルオレンメタノール0.78gを使用したことを除いては、前記実施例1と同じ方法で下記化学式9のプロトン伝導性ポリイミドを製造した。下記化学式9において、n/n+m=0.236、数平均分子量180,000、換算重量700であった。
ジフェニルエタノールの代りにベンジルアルコール0.43gを使用したことを除いては、前記実施例1と同じ方法で下記化学式10のプロトン伝導性ポリイミドを製造した。下記化学式10において、n/n+m=0.526、数平均分子量130,000、換算重量900であった。
ジフェニルエタノールの代りに2−フルオレンエタノール0.84gを使用したことを除いては、前記実施例1と同じ方法で下記化学式11のプロトン伝導性ポリイミドを製造した。下記化学式11において、n/n+m=0.480、数平均分子量100,000、換算重量1200であった。
前記実施例1から得られた褐色粉末1.0gを1,4−ジオキサン15mlに加えてから攪拌して透明な溶液を得た後、前記溶液にポリウレタン(PU)(Tecoflex、シグマアルドリッチ社製)50mgを加えて24時間室温で攪拌した。このように得られた溶液をろ過して褐色の透明な溶液とした。
前記実施例1から得られたPHIDPS1.0gをTHFに溶解させて透明な溶液を得た後、溶液キャスト法により製膜して、70℃の真空オーブンで乾燥させ、膜厚100μmのPHIDPS高分子膜を製造した。
前記実施例11で得られたPHIDPS/PUブレンド粉末1.2gをTHFに溶解させて透明な溶液とした。その後、溶液キャスト法により製膜して、70℃の真空オーブンで乾燥し、膜厚100μmのPHIDPS/PUブレンド高分子膜を製造した。
500cm3反応容器にm−クレゾール250g、4,4’−ジアミノ−(1,1’−ビフェニル)−2,2’−ジスルホン酸10g、及び、5,5’−オキシビス(1,3−イソ−ベンゾフランジオン)を入れた後、180℃で4時間反応させた。反応後、前記溶液を攪拌して50℃まで冷却し、4,4’−メチレンビスベンゼンアミン13.4gを添加して180℃まで再び加熱した。前記溶液を常温まで冷却して重合反応を完結させ、メタノール溶液に入れて沈殿物を得た後、これをメタノールで洗浄してポリイミド主鎖にスルホン基が結合されているプロトン伝導性高分子を得た。前記高分子をTHFに溶解させて溶液を得た後、70℃の真空オーブンで乾燥させ、膜厚100μmの高分子膜を製造した。
ナフィオン115(デュポン社製)を使用して高分子膜を製造した。
前記実施例12、13及び比較例1から得られた高分子膜の温度に係るイオン伝導度を測定して図2に示した。図2において、本発明に係る高分子膜のイオン伝導度が非常に優れることが分かる。これは、側鎖に酸基を結合することで主鎖への影響を最小化さることにより、高分子膜の機械的強度を低下させずに酸基の濃度を増加させうるからである。このように酸基の濃度が増加されれば、従来のポリイミド膜に比べて高いイオン伝導度が得られる。
Claims (10)
- 下記化学式1で示される反復単位を含むことを特徴とするプロトン伝導性高分子。
A2は
A4は、
A5は
前記A 4 および前記A 5 はエーテル結合またはスルフィド結合で結合し、
前記BHは独立してプロトンを有する酸基であって、スルホン酸基、燐酸基またはスルホニル(トリフルオロメチルスルホニル)イミド基から選択される何れか1つであり、
n及びmは等しいかまたは異なる0ないし20の整数であって、n、mの値が同時に0とならず、n/n+m=0〜0.95である。) - 数平均分子量が5,000〜1,000,000であり、換算重量が250〜2500であることを特徴とする請求項1〜3のいずれかに記載のプロトン伝導性高分子。
- (a) ジアミノ単量体とテトラカルボン酸二無水物単量体を反応させてポリイミドを得る段階と、
(b) 前記ポリイミドと、芳香族ヒドロキシ化合物と、をトリアルキルホスフィン及びアゾ化合物の存在下で反応させた後、有機溶媒に溶解させる段階と、
(c) 前記溶液に強酸基供与剤を加える段階と、を含むことを特徴とする請求項1〜4のいずれかに記載のプロトン伝導性高分子の製造方法。 - 前記強酸基供与剤は、クロロスルホン酸、アセチルサルフェイト、三酸化イオウ、及び燐酸よりなる群から選択された何れか1つであることを特徴とする請求項5に記載のプロトン伝導性高分子の製造方法。
- 請求項1ないし4のうち何れか1項に記載のプロトン伝導性高分子を1質量%ないし99質量%含むことを特徴とする高分子ブレンド組成物。
- 前記高分子ブレンド組成物に使われる高分子は、ポリウレタン、ポリエーテルイミド、ポリエーテルケトン、ポリエーテル−エーテルケトン、ポリウレア、ポリプロピレン、ポリスチレン、ポリスルホン、ポリエーテルスルホン、ポリエーテル−エーテルスルホン、ポリフェニレンスルホン、ポリアラミド、ポリベンズイミダゾール、ポリ(ビスベンズオキサゾール−1,4−フェニレン)、ポリ(ビスベンゾ(ビス−チアゾール)−1,4−フェニレン)、ポリフェニレンオキシド、ポリフェニレンスルフィド、ポリパラフェニレン、ポリトリフルオロスチレンスルホン酸、ポリビニルホスホン酸及びポリスチレンスルホン酸よりなる群から選択される何れか1つ以上の高分子であることを特徴とする請求項7に記載の高分子ブレンド組成物。
- 請求項1ないし4のいずれか1項に記載のプロトン伝導性高分子、または、請求項7または8のうち何れか1項に記載の高分子ブレンド組成物を用いて製造されることを特徴とする高分子膜。
- 請求項9に記載の前記高分子膜を含むことを特徴とする燃料電池。
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