JP4774988B2 - 固体高分子電解質材料、製造方法及び固体高分子型燃料電池用膜電極接合体 - Google Patents
固体高分子電解質材料、製造方法及び固体高分子型燃料電池用膜電極接合体 Download PDFInfo
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- JP4774988B2 JP4774988B2 JP2005505925A JP2005505925A JP4774988B2 JP 4774988 B2 JP4774988 B2 JP 4774988B2 JP 2005505925 A JP2005505925 A JP 2005505925A JP 2005505925 A JP2005505925 A JP 2005505925A JP 4774988 B2 JP4774988 B2 JP 4774988B2
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- YSYRISKCBOPJRG-UHFFFAOYSA-N 4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole Chemical compound FC1=C(F)OC(C(F)(F)F)(C(F)(F)F)O1 YSYRISKCBOPJRG-UHFFFAOYSA-N 0.000 description 4
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- IZLFSDDOEKWVLD-UHFFFAOYSA-N 2-chloro-1,1,3,4,4,5,6,6,6-nonafluorohex-1-ene Chemical compound FC(C(F)(F)F)C(C(C(=C(F)F)Cl)F)(F)F IZLFSDDOEKWVLD-UHFFFAOYSA-N 0.000 description 1
- HDBGBTNNPRCVND-UHFFFAOYSA-N 3,3,3-trifluoropropan-1-ol Chemical compound OCCC(F)(F)F HDBGBTNNPRCVND-UHFFFAOYSA-N 0.000 description 1
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- JCMNMOBHVPONLD-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,6-nonafluorohexan-1-ol Chemical compound OCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)F JCMNMOBHVPONLD-UHFFFAOYSA-N 0.000 description 1
- COAUHYBSXMIJDK-UHFFFAOYSA-N 3,3-dichloro-1,1,1,2,2-pentafluoropropane Chemical compound FC(F)(F)C(F)(F)C(Cl)Cl COAUHYBSXMIJDK-UHFFFAOYSA-N 0.000 description 1
- QROUUECTKRZFHF-UHFFFAOYSA-N 4,4,5,5,5-pentafluoropentan-1-ol Chemical compound OCCCC(F)(F)C(F)(F)F QROUUECTKRZFHF-UHFFFAOYSA-N 0.000 description 1
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Images
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F214/18—Monomers containing fluorine
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F214/18—Monomers containing fluorine
- C08F214/182—Monomers containing fluorine not covered by the groups C08F214/20 - C08F214/28
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
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- 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
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
- H01M8/1023—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes
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- H—ELECTRICITY
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- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1039—Polymeric electrolyte materials halogenated, e.g. sulfonated polyvinylidene fluorides
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- H—ELECTRICITY
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- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
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- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
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- H—ELECTRICITY
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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Description
また、本イオン性基の前駆体基とは、加水分解や酸型化処理等の公知の処理により本イオン性基となる基であり、例えば−SO2F基等である。重合後に本イオン性基に変換すれば高分子電解質材料が得られる。また、上記ペルフルオロ有機基としては具体的にはエーテル結合性酸素原子を含んでもよいペルフルオロカーボン基が好ましい。式(G)で表わされる化合物のなかでも、特に式(3)で表わされる化合物が好ましい。
(i)ペルフルオロトリブチルアミン、ペルフルオロトリプロピルアミン等のポリフルオロトリアルキルアミン化合物。
(ii)ペルフルオロヘキサン、ペルフルオロオクタン、ペルフルオロデカン、ペルフルオロドデカン、ペルフルオロ(2,7−ジメチルオクタン)、2H,3H−ペルフルオロペンタン、1H−ペルフルオロヘキサン、1H−ペルフルオロオクタン、1H−ペルフルオロデカン、1H,4H−ペルフルオロブタン、1H,1H,1H,2H,2H−ペルフルオロヘキサン、1H,1H,1H,2H,2H−ペルフルオロオクタン、1H,1H,1H,2H,2H−ペルフルオロデカン、3H,4H−ペルフルオロ(2−メチルペンタン)、2H,3H−ペルフルオロ(2−メチルペンタン)等のフルオロアルカン。
(iv)ヘキサフルオロプロペンの2量体、ヘキサフルオロプロペンの3量体等の分子鎖末端に二重結合を有しないフルオロオレフィン。
(v)ペルフルオロデカリン、ペルフルオロシクロヘキサン、ペルフルオロ(1,2−ジメチルシクロヘキサン)、ペルフルオロ(1,3−ジメチルシクロヘキサン)、ペルフルオロ(1,3,5−トリメチルシクロヘキサン)、ペルフルオロジメチルシクロブタン(構造異性を問わない)等のポリフルオロシクロアルカン。
(vi)ペルフルオロ(2−ブチルテトラヒドロフラン)等のポリフルオロ環状エーテル化合物。
(viii)フッ素含有低分子量ポリエーテル。
(ix)tert−ブタノール等。
なお、これらの溶媒は、単独で用いてもよいし、2種以上を混合して用いてもよい。
この反応は、前述のように化合物(4)の塩素付加物に対して適用可能であるが、化合物(4)を重合してフルオロスルホニル基(−SO2F基)を有するポリマーを作製し、このポリマーの−SO2F基に対して同様の処理を行うことによってもスルホンイミド基を有するポリマーを得ることができる。
また、スルホン酸塩基(−SO3Mb基)は、塩酸、硝酸又は硫酸等の酸で処理することによりスルホン酸基(−SO3H基)に変換することができる。このようにして得られるイオン性基含有ポリマーは、必要に応じて過酸化水素水で処理してもよい。
これらの基の変換方法やポリマー処理は、公知の方法及び条件にしたがって実施できる。
高分子電解質膜と触媒層、触媒層とガス拡散層の接合は、例えば、ホットプレスやロールプレスにより行ってもよい。
なお、以下において1,1,2−トリクロロトリフルオロエタンをR−113と記し、CClF2CF2CHClFをHCFC225cbと記し、ガスクロマトグラフィーをGCと、サイズ排除クロマトグラフィーをGPCと、数平均分子量をMnと、重量平均分子量をMWと記す。
先に示した合成スキームに基づき、化合物(A1)〜(A5)の合成を経て化合物(4)を合成した。化合物(A1)は、J.Fluorine Chem.,46,39(1990)に記載される方法で合成した。
CH3COCH2OH(150.0g)とトリエチルアミン(225.4g)をフラスコに入れ、氷浴下で撹拌した。窒素ガスで希釈したCF3CF2COF(377.5g)を、内温を10℃以下に保ちながら4時間かけて吹き込んだ。次に、室温で2時間撹拌して、氷水500mLに加えた。
得られた粗液を分液し、フルオロカーボン層を得た。さらにフルオロカーボン層を水(250mL)で2回洗浄し、硫酸マグネシウムで乾燥した。さらに、ろ過して粗液を得た。ろ液を減圧蒸留して化合物(A2)(167.3g)を47.1〜47.9℃/0.7kPa(絶対圧)の留分として得た。留分のGCによる純度は、99%であった。
乾燥雰囲気下で三フッ化ホウ素エーテラート(32.01g)と脱水アセトン(4.5L)を混合し、化合物(A1)(1198.1g)を脱水アセトン(1.2L)で希釈して上記混合物に滴下し、1時間加熱還流した。アセトンを約半分留去した後、化合物(A2)(1031.41g)をトルエン(2L)で希釈して反応系に加え、65℃以下で加熱しながら減圧下で残りのアセトンを留去した。反応混合物を飽和炭酸水素ナトリウム水溶液と氷の混合物に注ぎ、t−ブチルメチルエーテル(2.9L)で3回に分けて抽出し、抽出液を硫酸マグネシウムで乾燥し、乾燥剤を減圧濾過で除去し、濾液を濃縮した。残存物をシリカゲルカラムクロマトグラフィ(展開溶媒:HCFC225cb/n−ヘキサン1:1(体積比)の後、HCFC225cbのみ)で精製して化合物(A3)(1478.95g)を得た。GC純度は99%であった。
500mLのニッケル製オートクレーブに、R−113(312g)を加えて撹拌し、25℃に保った。オートクレーブガス出口には、20℃に保持した冷却器、NaFペレット充填層、及び−10℃に保持した冷却器を直列に設置した。冷却器からは凝集した液をオートクレーブに戻すための液体返送ラインを設置した。
窒素ガスを1.0時間吹き込んだ後、窒素ガスで20%に希釈したフッ素ガス(以下、希釈フッ素ガスと記す。)を、流速12.72L/hで1時間吹き込んだ。つぎに、フッ素ガスを同じ流速で吹き込みながら、化合物(A3)(20.0g)をR−113(200g)に溶解した溶液を7.6時間かけて注入した。
化合物(A4)(10.6g)を、充分に乾燥させたKF粉末(0.18g)と共にフラスコに仕込み、室温で24時間撹拌した。冷却後、フラスコより回収したサンプル(8.8g)をろ過し、液状サンプルを回収した。NMR、及びGC−MSにより、主生成物が化合物(A5)であることを確認した。収率は77.8%であった。
ガラスビーズが充填された内径1/2インチのステンレス反応管(流動層型)を350℃に加熱し、加熱された化合物(A5)と窒素の混合ガス(モル比1:9)を流通させた。滞留時間は10秒、線速度は2.5cm/秒であった。化合物(A5)の使用量は68.1gであった。反応管から出てきたガスを冷却することにより化合物(4)を主成分とする液を得た。反応収率は52%であった。
次に反応液にメタノールを加え、未反応の化合物(A5)をメチルエステル化した。水洗後、蒸留により化合物(4)を精製した。沸点は48℃/2.7kPaであった。
[例1]
化合物(4)の単独重合体を以下のとおり得た。
化合物(4)(1.25g)とペルフルオロ過酸化ベンゾイル(4.5mg)をガラス管に入れ、液体窒素で固めた後真空下で封管した。70℃で45時間保持した後、生成したポリマーを取り出し、n−C6F13Hに溶解してヘキサンで再沈殿させ、ろ過後ヘキサンで洗浄し、80℃で16時間減圧乾燥した。化合物(4)の単独重合体の収量は0.823g(収率66%)であった。GPCによるMnは6.5×104、MWは9.8×104であった。DSCで測定したガラス転移温度は92℃であった。屈折率は1.35であった。
CF2=CFOCF2CF(CF3)OCF2CF2SO2F(1.25g)とペルフルオロ過酸化ベンゾイル(4.5mg)をガラス管に入れて、液体窒素で固めた後、真空下で封管した。70℃で45時間反応させた後も、無色透明の液体のままであった。反応液を丸底フラスコに移し、HCFC225cbでガラス管壁を洗浄して、洗液を前記丸底フラスコに添加した。減圧下で低沸点成分を留去して、80℃で16時間減圧乾燥した。水飴状のオリゴマー(0.328g)を得た。ポリマー収率は26%。GPCによるMnは3.7×103、MWは4.7×103であった。この結果から、CF2=CFOCF2CF(CF3)OCF2CF2SO2Fに比べ化合物(4)は重合反応性が高いことが確認された。
化合物(4)とペルフルオロ(2−メチレン−4−メチル−1,3−ジオキソラン)とを以下のとおり共重合した後、加水分解、酸型化した。
容積0.1Lのステンレス製オートクレーブに、化合物(4)7.90g、ペルフルオロ(2−メチレン−4−メチル−1,3−ジオキソラン)9.60g、HCFC225cb109.7g、ペルフルオロ過酸化ベンゾイル255mgを入れ、液体窒素で冷却して脱気した。70℃で5時間反応させた後、ヘキサンに投入することでポリマーを沈殿させた。ヘキサンで洗浄した後、100℃で真空乾燥することにより、白色のポリマー14.0gを得た。
化合物(4)とペルフルオロ(2−メチレン−4−メチル−1,3−ジオキソラン)とを以下のとおり共重合した後、加水分解、酸型化した。
容積0.1Lのステンレス製オートクレーブに、化合物(4)4.36g、ペルフルオロ(2−メチレン−4−メチル−1,3−ジオキソラン)7.31g、HCFC225cb72.59g、ペルフルオロ過酸化ベンゾイル170mgを入れ、液体窒素で冷却して脱気した。70℃で5時間反応した後、例2と同様にポリマー凝集、洗浄及び乾燥を行い、白色のポリマー9.35gを得た。
このポリマーを例2と同様に加水分解、酸型化した後、10質量%の無色透明のエタノール溶液を調製した。
化合物(4)とペルフルオロ(2−メチレン−4−メチル−1,3−ジオキソラン)とを以下のとおり共重合した後、加水分解、酸型化した。
容積0.1Lのステンレス製オートクレーブに、化合物(4)5.44g、ペルフルオロ(2−メチレン−4−メチル−1,3−ジオキソラン)6.23g、HCFC225cb72.65g、ペルフルオロ過酸化ベンゾイル170mgを入れ、液体窒素で冷却して脱気した。70℃で5時間反応した後、例2と同様にポリマー凝集、洗浄及び乾燥を行い、白色のポリマー9.11gを得た。
このポリマーを例2と同様に加水分解、酸型化した後10質量%の無色透明のエタノール溶液を調製した。
例3と同様にしてキャストフィルムを作製し、軟化温度を測定したところ155℃であった。
化合物(4)とペルフルオロ(2−メチレン−4−メチル−1,3−ジオキソラン)とを以下のとおり共重合した後、加水分解、酸型化した。
容積0.1Lのステンレス製オートクレーブに、化合物(4)9.99g、ペルフルオロ(2−メチレン−4−メチル−1,3−ジオキソラン)11.44g、HCFC225cb28.58g、ペルフルオロ過酸化ベンゾイル100mgを入れ、液体窒素で冷却して脱気した。70℃で5時間反応した後、例2と同様にポリマー凝集、洗浄及び乾燥を行い、白色のポリマー14.15gを得た。
このポリマーを例2と同様に加水分解、酸型化した後10質量%の無色透明のエタノール溶液を調製した。
化合物(4)とペルフルオロ(2,2−ジメチル−1,3−ジオキソール)とを以下のとおり共重合した後、加水分解、酸型化した。
容積0.1Lのステンレス製オートクレーブに、化合物(4)6.18g、ペルフルオロ(2,2−ジメチル−1,3−ジオキソール)14.23g、HCFC225cb29.61g、ペルフルオロ過酸化ベンゾイル100mgを入れ、液体窒素で冷却して脱気した。65℃で5時間反応した後、例2と同様にポリマー凝集、洗浄及び乾燥を行い、白色のポリマー7.45gを得た。
このポリマーを例2と同様に加水分解、酸型化した後10質量%の無色透明のエタノール溶液を調製した。
化合物(4)とテトラフルオロエチレンとを以下のとおり共重合、加水分解、酸型化した。
容積0.1Lのステンレス製オートクレーブに、化合物(4)8.48g、17mgのメタノールを含有するHCFC225cb76.3g、ペルフルオロ過酸化ベンゾイル170mgを入れ、液体窒素で冷却して脱気した。テトラフルオロエチレン11.3gを導入した後、70℃で50分反応を行った。この間ゲージ圧力は0.97MPaから0.43MPaに低下した。冷却後、系内のガスをパージし、ヘキサンに投入することでポリマーを沈殿させた。ヘキサンで洗浄した後、100℃で真空乾燥することにより、白色のポリマー14.1gを得た。
次に、このポリマーの容量流速を測定した。本発明において容量流速とは、長さ1mm、内径1mmのノズルを用い、30kg/cm2の押出し圧力の条件で樹脂の溶融押出しを行った際の押出し量であって、単位はmm3/秒で表される。このポリマーの300℃における容量流速をフローテスタCFT−500A(島津製作所製)を用いて測定したところ34mm3/秒であった。
25℃、相対湿度50%において上記フィルムの機械強度を測定したところ、破断強度は19.8MPa、破断伸度は116%であり、膜として十分な強度を有していることが確認された。なお、フィルムの機械強度は、フィルムを長さ100mm、幅10mm、標線間距離50mmに切り出し、チャック間初期距離50mm、引張速度50mm/min、25℃、相対湿度50%において引張試験を行って測定した。
化合物(4)90質量部とCF2=CFOCF2CF2CF2CF2OCF(CF3)CF2OCF=CF2で表されるジビニルエーテル10質量部の混合液にペルフルオロ過酸化ベンゾイル3質量部を溶解し、60℃にて数分加熱して少し粘度の高い溶液Aを調製した。
固体高分子型燃料電池の電極の触媒層の材料又は高分子電解質膜の材料として従来より用いられている、テトラフルオロエチレン/CF2=CFOCF2CF(CF3)OCF2CF2SO2F共重合体を公知の方法により製造した。得られたポリマーの元素分析で求めた硫黄の含有量から得られたイオン交換容量ARは、1.1meq/gであった。例7と同様に、加水分解、酸型化処理してフルオロスルホニル基をスルホン酸基に変換して得られたポリマーの軟化温度は79℃であった。
例2〜4で得られたポリマーのエタノール溶液からそれぞれキャスト膜を作製し、160℃で30分熱処理を行った。このキャスト膜を90℃のイオン交換水に16時間浸漬した後、室温にて測定した含水率は、それぞれ62%、40%、146%であった。
含水率の測定で使用したフィルムと同様の例7と比較例2のフィルム(酸型)に対し、高真空圧力法(ASTM D1434−75M法)により酸素ガス透過性を評価した。使用した装置は理化精機工業社製、ガス透過装置である。
例4で得られたポリマーのエタノール溶液と、白金をカーボンに55質量%担持させた担持触媒と水を混合し、上記ポリマーと担持触媒(ポリマーとカーボンとの質量比4:5)がエタノールと水の混合分散媒(質量比で1:1)に分散した固形分濃度12質量%の分散液を得て、これをカソード触媒層形成用塗工液とした。この塗工液を、シリコーン系離型剤で表面を処理した厚さ100μmのポリエチレンテレフタレート(PET)フィルム上にダイコート法で塗工し、80℃で乾燥して厚さ約10μm、白金担持量約0.5mg/cm2のカソード触媒層を形成した。
例4で得られたポリマーのかわりにCF2=CF2に基づく繰り返し単位とCF2=CF−OCF3CF(CF2)−OCF2CF2SO3Hに基づく繰り返し単位とからなるAR1.1meq/gのポリマーを用いた以外は上記実施例と同様にしてカソード触媒層を作製した。このカソード触媒層を用いた以外は上記実施例と同様にして膜電極接合体を作製し、発電試験を行った。電流密度とセル電圧の関係の結果を表1に示す。
Claims (19)
- 前記ポリマーは、前記式(2)で表される繰り返し単位に加えて、非イオン性で環構造を有しラジカル重合性を有する含フッ素モノマーに基づく繰り返し単位、非イオン性の環化重合性含フッ素モノマーに基づく繰り返し単位、及びテトラフルオロエチレンに基づく繰り返し単位からなる群から選ばれる1種以上を含む共重合体である請求項1に記載の固体高分子電解質材料。
- 前記ポリマーは、ペルフルオロ化されたポリマーである請求項1又は2に記載の固体高分子電解質材料。
- 軟化温度が90℃以上である請求項1〜3のいずれか一項に記載の固体高分子電解質材料。
- 非イオン性で環構造を有しラジカル重合性を有する含フッ素モノマー、非イオン性の環化重合性含フッ素モノマー、及びテトラフルオロエチレンからなる群から選ばれる1種以上と、前記式(4)で表わされる脂環式含フッ素モノマーとをラジカル重合する請求項5に記載の固体高分子電解質材料の製造方法。
- 前記式(4)で表わされる脂環式モノマーとともに、分子内に2以上のラジカル重合性の二重結合を有する含フッ素モノマーを共重合することにより、架橋させる請求項5又は6に記載の固体高分子電解質材料の製造方法。
- 前記ポリマーは、前記式(2)で表される繰り返し単位に加えて、非イオン性で環構造を有しラジカル重合性を有する含フッ素モノマーに基づく繰り返し単位、非イオン性の環化重合性含フッ素モノマーに基づく繰り返し単位、及びテトラフルオロエチレンに基づく繰り返し単位からなる群から選ばれる1種以上を含む共重合体である請求項8に記載の固体高分子電解質膜。
- 前記ポリマーは、軟化温度が90℃以上である請求項8又は9に記載の固体高分子電解質膜。
- 前記ポリマーは、分子内に2以上のラジカル重合性の二重結合を有する含フッ素モノマーに基づく繰り返し単位を含み、当該繰り返し単位により架橋されている請求項8〜10のいずれか一項に記載の固体高分子電解質膜。
- 前記ポリマーは、前記式(2)で表される繰り返し単位に加えて、非イオン性で環構造を有しラジカル重合性を有する含フッ素モノマーに基づく繰り返し単位、非イオン性の環化重合性含フッ素モノマーに基づく繰り返し単位、及びテトラフルオロエチレンに基づく繰り返し単位からなる群から選ばれる1種以上を含む共重合体である請求項12に記載の液状組成物。
- 前記ポリマーは、前記式(2)で表される繰り返し単位に加えて、非イオン性で環構造を有しラジカル重合性を有する含フッ素モノマーに基づく繰り返し単位、非イオン性の環化重合性含フッ素モノマーに基づく繰り返し単位、及びテトラフルオロエチレンに基づく繰り返し単位からなる群から選ばれる1種以上を含む共重合体である請求項14に記載の固体高分子型燃料電池用膜電極接合体。
- 前記ポリマーは、軟化温度が90℃以上である請求項14又は15に記載の固体高分子型燃料電池用膜電極接合体。
- 前記ポリマーは、前記式(2)で表される繰り返し単位に加えて、非イオン性で環構造を有しラジカル重合性を有する含フッ素モノマーに基づく繰り返し単位、非イオン性の環化重合性含フッ素モノマーに基づく繰り返し単位、及びテトラフルオロエチレンに基づく繰り返し単位からなる群から選ばれる1種以上を含む共重合体である請求項17に記載の固体高分子型燃料電池用膜電極接合体。
- 前記ポリマーは、軟化温度が90℃以上である請求項17又は18に記載の固体高分子型燃料電池用膜電極接合体。
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PCT/JP2004/006127 WO2004097851A1 (ja) | 2003-04-28 | 2004-04-28 | 固体高分子電解質材料、製造方法及び固体高分子型燃料電池用膜電極接合体 |
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EP (1) | EP1583106A4 (ja) |
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Cited By (1)
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JP5261937B2 (ja) * | 2004-10-27 | 2013-08-14 | 旭硝子株式会社 | 電解質膜の製造方法 |
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- 2004-04-28 JP JP2005505925A patent/JP4774988B2/ja not_active Expired - Lifetime
- 2004-04-28 WO PCT/JP2004/006127 patent/WO2004097851A1/ja active Application Filing
- 2004-04-28 EP EP04730031A patent/EP1583106A4/en not_active Withdrawn
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EP1583106A1 (en) | 2005-10-05 |
US20050266291A1 (en) | 2005-12-01 |
CN100530442C (zh) | 2009-08-19 |
WO2004097851A1 (ja) | 2004-11-11 |
US7429428B2 (en) | 2008-09-30 |
EP1583106A4 (en) | 2008-07-09 |
JPWO2004097851A1 (ja) | 2006-07-13 |
CN1777962A (zh) | 2006-05-24 |
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