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Aquivion?D72-25BS

品牌
Sigma-Aldrich
货号
802549
规格纯度
PFSA eq. wt. 720 g/mole SO3H, liquid, dispersion, 25% in water, stabilized CF3polymer chain ends
价格
3895.51 *本价格含增值税费
促销
服务
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  • 增值税票
数量
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半岛bd体育手机客户端 名称:
Aquivion ?D72-25BS
Aquivion SO 3H-form
Tetrafluoroethylene-perfluoro(3-oxa-4-pentenesulfonic acid) copolymer, Ethanesulfonic acid
半岛bd体育手机客户端 介绍:

半岛bd体育手机客户端 说明

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.

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.

包装

25, 250 mL in poly bottle

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.

法律信息

Aquivion is a registered trademark of Solvay Group

基本信息

线性分子式 (C4HF7O4S .C2F4)x
NACRES NA.23

半岛bd体育手机客户端 性质

质量水平 100
形式 dispersion
liquid
eq. wt. 720±20g/mol (SO3H)
浓度 25±1 % (w/w)
密度 1.14 g/mL

安全信息

储存分类代码 10 - Combustible liquids
WGK WGK 2
闪点(F) Not applicable
闪点(C) Not applicable

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