Title:
広いイオン交換容量を有するフッ素系高分子イオン交換膜及びその製造方法
Document Type and Number:
Japanese Patent JP5105340
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fluoropolymer ion-exchange membrane which is prepared at a low cost, has an ion-exchange capacity with a wide range and a high oxidation resistance, and is especially suitable for a fuel cell. SOLUTION: This fluoropolymer ion-exchange membrane mainly comprises a long-chain branched polytetrafluoroethylene structure and has oxyhydrofluorocarbon side chains having sulfo groups, represented by [-OCH2 CF2 CF2 SO3 H], and bonded thereto. The membrane is of a proton-exchange type and has an ion-exchange capacity of 0.5-2.0 meq/g, a tensile strength in the water-containing state of 5-25 MPa, and an electrical conductivity at 25 deg.C of 0.05-0.25 Ω<-1> .cm<-1> . The production method for the ion-exchange membrane is also provided.
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Inventors:
Masaru Yoshida
Takeshi Suwa
You Morita
Asano Masaharu
Takeshi Suwa
You Morita
Asano Masaharu
Application Number:
JP2001153926A
Publication Date:
December 26, 2012
Filing Date:
May 23, 2001
Export Citation:
Assignee:
Japan Atomic Energy Agency
International Classes:
C08J5/22; C08F259/08; C25B13/08; H01M8/02
Domestic Patent References:
| JP2000159914A | ||||
| JP11500173A | ||||
| JP58501232A | ||||
| JP58023813A | ||||
| JP6116423A | ||||
| JP2001048923A | ||||
| JP2001348439A | ||||
| JP62500243A | ||||
| JP2000260223A | ||||
| JP50032289A | ||||
| JP6342665A | ||||
| JP52151684A |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shurin Sakurai
Fujihiro Kanda
Hideo Tanaka
Shinya Hosokawa
Norihiro Fukasawa
Koji Hirayama
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shurin Sakurai
Fujihiro Kanda
Hideo Tanaka
Shinya Hosokawa
Norihiro Fukasawa
Koji Hirayama