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Sigma-Aldrich

Aquivion® E98-05

membrane sheet, PFSA eq. wt. 980 g/mole SO3H, L × W × thickness 18 cm × 18 cm × 50 μm

Synonym(s):

Aquivion® SO3H, Tetrafluoroethylene-perfluoro(3-oxa-4-pentenesulfonic acid) copolymer, Ethanesulfonic acid

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About This Item

Linear Formula:
[CF2CF(OCF2CF2SO3H)]m[CF2CF2]n
CAS Number:
1163733-25-2
UNSPSC Code:
26111700
NACRES:
NA.23

form

membrane sheet

L × W × thickness

18 cm × 18 cm × 50 μm

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General description

Aquivion® PFSA ionomer membranes are melt-extruded films based on the short-side-chain (SSC) copolymer of Tetrafluoroethylene and the Sulfonyl Fluoride Vinyl Ether (SFVE) F2C=CF-O-(CF2)2-SO2F industrially produced by Solvay Specialty Polymers. Following a film hydrolysis the perfluoropolymer′s functional groups are operative in their sulfonic acid form, SO3H.

Application

Aquivion® PFSA membranes are used for electrochemical applications such as, but not limited to, polymer electrolyte fuel cells, electro-deionization systems, ozone generators, water electrolyzers, hydrogen separators and compressors, redox flow batteries as well as pervaporation or gas humidification systems.

Packaging

Membranes are packed and sealed in a barrier protection pouch inside a cardboard box to prevent damage or deterioration. It is recommendable storing the product in a clean, humidity-controlled environment protected from direct sunlight or other sources of irradiation or heat. Sheet dimensions are based on product conditioned at 23°C and about 50% relative humidity. They may slightly vary upon exposure to different ambient conditions. Maximum temperature rating is 230°C, overheating will result in polymer degradation, discoloration and release of toxic volatile decomposition product.

Legal Information

Aquivion is a registered trademark of Syensqo Group

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Perfluorosulfonic Acid Membranes for Fuel Cells

Advances in electrochemical water conversion and understanding PEMFC degradation drive progress in hydrogen technologies.

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