JP2003082129A5 - - Google Patents
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- JP2003082129A5 JP2003082129A5 JP2001281181A JP2001281181A JP2003082129A5 JP 2003082129 A5 JP2003082129 A5 JP 2003082129A5 JP 2001281181 A JP2001281181 A JP 2001281181A JP 2001281181 A JP2001281181 A JP 2001281181A JP 2003082129 A5 JP2003082129 A5 JP 2003082129A5
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- sulfonic acid
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- bonded
- fluorine
- carbon
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Description
本発明によるフッ素系高分子イオン交換膜は、上記の長鎖分岐型ＰＴＦＥ構造を主体とし、これにフルオロエチレン単位が共グラフトして共グラフト鎖を形成し、スルホン酸基［−ＳＯ3Ｈ］とカルボキシル基［−ＣＯＯＨ］が［−（ＣＦ2）−］単位を挟んでグラフト鎖の炭素に直接結合したフッ素系高分子から成る。スルホン酸基とカルボキシル基は［−（ＣＦ2）−］単位を挟んで炭素に結合していてもよいが、例えば、スルホン酸基が２〜５個続いて結合して、カルボン酸が１個結合していてもよい。この割合は、下記に述べる製造方法において、重合性モノマーであるα，β，β−トリフルオロエチレンスルホニルハライドとアルキル−α，β，β−トリフルオロアクリレートのグラフト反応時におけるモノマーの仕込み比によって決まる。 The fluorine-based polymer ion exchange membrane according to the present invention is mainly composed of the above-mentioned long-chain branched PTFE structure, to which a fluoroethylene unit is co-grafted to form a co-graft chain, and a sulfonic acid group [—SO 3 H] a carboxyl group [-COOH] is made of fluorine-based polymer bonded directly to a carbon of the graft chains across the unit [- - (CF 2)] . The sulfonic acid group and the carboxyl group may be bonded to carbon with the [-(CF 2 )-] unit interposed therebetween . For example, two to five sulfonic acid groups are successively bonded to form one carboxylic acid. They may be combined. This ratio is determined by the charge ratio of the monomers in the grafting reaction between the polymerizable monomer α, β, β-trifluoroethylenesulfonyl halide and the alkyl-α, β, β-trifluoroacrylate in the production method described below. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001281181A JP4953113B2 (en) | 2001-09-17 | 2001-09-17 | Fluoropolymer ion exchange membrane having excellent oxidation resistance and high ion exchange capacity and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001281181A JP4953113B2 (en) | 2001-09-17 | 2001-09-17 | Fluoropolymer ion exchange membrane having excellent oxidation resistance and high ion exchange capacity and method for producing the same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003082129A JP2003082129A (en) | 2003-03-19 |
| JP2003082129A5 true JP2003082129A5 (en) | 2008-06-19 |
| JP4953113B2 JP4953113B2 (en) | 2012-06-13 |
Family
ID=19105056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001281181A Expired - Fee Related JP4953113B2 (en) | 2001-09-17 | 2001-09-17 | Fluoropolymer ion exchange membrane having excellent oxidation resistance and high ion exchange capacity and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4953113B2 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4670073B2 (en) * | 2003-08-28 | 2011-04-13 | 独立行政法人 日本原子力研究開発機構 | Method for producing nano space control polymer ion exchange membrane |
| JP4576620B2 (en) * | 2003-08-28 | 2010-11-10 | 独立行政法人 日本原子力研究開発機構 | Method for producing nanostructure control polymer ion exchange membrane |
| KR20070072530A (en) * | 2004-10-27 | 2007-07-04 | 아사히 가라스 가부시키가이샤 | Electrolyte material, electrolyte membrane and membrane electrode assembly for solid polymer fuel cell |
| JP4822389B2 (en) | 2004-11-15 | 2011-11-24 | 日東電工株式会社 | Electrolyte membrane with excellent oxidation resistance |
| JP4748410B2 (en) | 2004-12-22 | 2011-08-17 | 独立行政法人 日本原子力研究開発機構 | Method for producing a polymer electrolyte membrane for a highly durable fuel cell incorporating a crosslinked structure |
| US8329766B2 (en) * | 2005-02-24 | 2012-12-11 | Japan Atomic Energy Agency | Functional membrane and production method thereof, and electrolyte membrane for use in fuel cell and production method thereof |
| JP4747241B2 (en) | 2005-02-25 | 2011-08-17 | 独立行政法人 日本原子力研究開発機構 | Functional membrane, method for producing electrolyte membrane for fuel cell, and electrolyte membrane for fuel cell |
| JP4682358B2 (en) | 2005-04-05 | 2011-05-11 | 独立行政法人 日本原子力研究開発機構 | Method for producing functional inorganic / graft polymer hybrid ion exchange membrane and electrolyte membrane for fuel cell |
| JP4514643B2 (en) | 2005-04-12 | 2010-07-28 | 信越化学工業株式会社 | Solid polymer electrolyte membrane for direct methanol fuel cell, method for producing the same, and direct methanol fuel cell |
| JP4825446B2 (en) | 2005-05-06 | 2011-11-30 | 信越化学工業株式会社 | Solid polymer electrolyte membrane, method for producing the same, and fuel cell |
| JP2006351244A (en) * | 2005-06-13 | 2006-12-28 | Shin Etsu Chem Co Ltd | Solid polyelectrolyte membrane, manufacturing method therefor, and fuel cell |
| JP5011567B2 (en) | 2005-11-17 | 2012-08-29 | 独立行政法人日本原子力研究開発機構 | Nano-inorganic particle composite cross-linked polymer electrolyte membrane, method for producing the same, and membrane / electrode assembly using the same |
| JP4997625B2 (en) | 2006-03-24 | 2012-08-08 | 独立行政法人日本原子力研究開発機構 | Method for producing polymer electrolyte membrane for fuel cell, electrolyte membrane thereof, and membrane electrode assembly for fuel cell using the membrane |
| JP5093440B2 (en) | 2006-06-09 | 2012-12-12 | 信越化学工業株式会社 | Electrolyte membrane / electrode assembly for direct methanol fuel cells |
| EP2124277A4 (en) | 2007-02-16 | 2010-05-19 | Shinetsu Chemical Co | Method for producing electrolyte membrane for fuel cell and method for producing electrolyte membrane-electrode assembly for fuel cell |
| US20100239944A1 (en) | 2007-09-12 | 2010-09-23 | Shin-Etsu Chemical Co., Ltd. | Solid polymer electrolyte membrane, method for production of solid polymer electrolyte membrane, and fuel cell |
| EP2964370B1 (en) * | 2013-03-04 | 2020-09-23 | Arkema, Inc. | Long chain branched fluoropolymer membranes |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59258B2 (en) * | 1975-10-15 | 1984-01-06 | 株式会社トクヤマ | Method for producing perfluorocarbon cation exchanger |
| JPS5738823A (en) * | 1980-08-18 | 1982-03-03 | Japan Atom Energy Res Inst | Ion-exchange membrane and its production |
| JP3317452B2 (en) * | 1992-10-05 | 2002-08-26 | 株式会社レイテック | Modified polytetrafluoroethylene and method for producing the same |
| JP4568848B2 (en) * | 2000-06-07 | 2010-10-27 | 独立行政法人 日本原子力研究開発機構 | Fluororesin ion exchange membrane having a wide range of ion exchange capacities and method for producing the same |
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2001
- 2001-09-17 JP JP2001281181A patent/JP4953113B2/en not_active Expired - Fee Related
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