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Aquivion® D72-25BS
产品编号: | 3410026 |
规格: | PFSA eq. wt. 720 g/mole SO3H, liquid, dispersion, 25% in water, stabilized CF3 polymer chain ends |
包装规格: | 25 ML,250 ML |
产品类别: | 进口试剂 |
品牌: | Sigma-Aldrich |
优惠价: | 立即咨询 |
产品别名
Aquivion® D72-25BS
Aquivion SO3H-form
Tetrafluoroethylene-perfluoro(3-oxa-4-pentenesulfonic acid) copolymer, Ethanesulfonic acid
基本信息
Linear Formula【线性分子式】 | (C4HF7O4S .C2F4)x |
NACRES | NA.23 |
General description【一般描述】 | Aquivion® PFSA dispersions are based on the short-side-chain (SSC) copolymer of Tetrafluoroethylene and the Sulfonyl Fluoride Vinyl Ether (SFVE) CF2=CF2-O-(CF2)2-SO2F industrially produced by Solvay Specialty Polymers. The resulting perfluoropolymer′s functional groups are in their sulfonic acid form, SO3H. |
Application【应用】 | Aquivion® D72-25BS can be used as a formulation additive for the production of polymer electrolyte fuel cell electrodes, manufacturing or repairing of cation-exchange membranes, surface coatings of PTFE membranes to improve their wetting behavior or for the development of superacid catalysts. The addition of further film-forming and/or other volatile or non-volatile chemicals is necessary to impart the desired processing and end-product characteristics. |
Other Notes【其他说明】 | Features & Benefits: Aquivion® D72-25BS is delivered as a colloidal dispersion in highly pure deionized water. It contains the perfluoropolymer′s sulfonic acid form (R-SO3H) of equivalent weight (EW) 720g/mole SO3H at very high solid content of 25% by weight which allows a large variety of subsequent formulations without additional pre-concentration steps. D72-25BS contains "chemically stabilized" perfluoropolymer in which a large amount of polymer end groups are converted to their inert "CF3" configuration. Hydrophilicity, swelling and water retention at dry state are more pronounced than for D79-25BS, D83-24B or D98-25BS. |
Legal Information【法律信息】 | Aquivion is a registered trademark of Solvay Group |
产品性质
Quality Level【质量水平】 | 100 |
form【形式】 | dispersion liquid |
eq. wt. | 720±20g/mol (SO3H) |
concentration【浓度】 | 25±1 % (w/w) |
density | 1.14 g/mL |
packaging【包装】 | 25, 250 mL in poly bottle |
安全信息
Storage Class Code【储存分类代码】 | 10 - Combustible liquids |
WGK | WGK 2 |