Description

Ethanesulfonyl Fluoride, 2-[1-[Difluoro[(Trifluoroethenyl)Oxy]Methyl]-1,2,2,2-Tetrafluoroethoxy]-1,1,2,2-Tetrafluoro-, Polymer With Tetrafluoroethene is a high-performance fluorinated polymer, representing a specialized class of perfluorinated sulfonyl fluoride vinyl ether monomers copolymerized with tetrafluoroethylene (TFE). This compound is engineered to deliver exceptional chemical resistance, thermal stability, and unique ion-exchange capabilities. It is primarily sought after by advanced material scientists and chemical engineers in the fluoropolymer production, proton exchange membrane (PEM) fuel cell, and specialty chemical synthesis sectors.

Application

• Proton Exchange Membranes (PEMs): A critical precursor for perfluorinated sulfonic acid (PFSA) ionomers, such as Nafion®-like materials, used in fuel cells and electrolyzers.
• Advanced Fluoropolymer Synthesis: Serves as a key monomer for creating copolymers with enhanced ionic conductivity and chemical inertness for demanding applications.
• Chlor-Alkali Industry Membranes: Used in the manufacture of membranes for electrochemical cells, offering high current efficiency and durability.
• Specialty Coatings & Films: Imparts superior chemical and thermal resistance to coatings for semiconductor processing equipment and aggressive chemical environments.
• Catalyst & Reagent Support: Functionalized polymers derived from this monomer can act as solid supports for catalysts in organic synthesis.
• Research & Development: A vital building block for academic and industrial R&D focused on next-generation polymeric materials with tailored ionic properties.

Basic Information

Product Name	Ethanesulfonyl Fluoride, 2-[1-[Difluoro[(Trifluoroethenyl)Oxy]Methyl]-1,2,2,2-Tetrafluoroethoxy]-1,1,2,2-Tetrafluoro-, Polymer With Tetrafluoroethene
CAS No.	26654-97-7
Molecular Formula	(C7F12O4S)x·(C2F4)y
Molecular Weight	Polymer - Contact for details
Synonyms	Perfluoro(3-oxa-4-pentenesulfonyl fluoride) copolymer with TFE; PSEPVE copolymer; Tetrafluoroethylene-perfluoro(3-oxa-4-pentenesulfonyl fluoride) copolymer; Nafion® monomer precursor; PFSA precursor; 2-[(Trifluoroethenyl)oxy]-1,1,2,2-tetrafluoroethanesulfonyl fluoride polymer with tetrafluoroethene; FSO2-CF2CF2-O-CF(CF3)-CF2-O-CF=CF2 copolymer with TFE
EINECS	Contact for details

Quality Control

Our production of this advanced fluorochemical adheres to stringent quality management systems. Each batch is characterized using advanced analytical techniques including NMR (19F, 1H), FT-IR, and GPC/SEC to confirm monomer incorporation ratio, molecular weight distribution, and purity. A comprehensive Certificate of Analysis (COA) detailing specific parameters such as equivalent weight (EW), ionic form, and thermal stability is provided with every shipment to ensure material consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is moisture-sensitive; keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis of the sulfonyl fluoride group. Isolate from strong bases and reactive materials.

Specification

Item	Specification
Appearance	White to off-white granules or powder
Equivalent Weight (EW)	800 - 1200 g/mol SO3H (Acid Form) *
Ionic Form (as supplied)	Sulfonyl Fluoride (-SO2F)
Thermal Decomposition Temperature (Td)	> 280 °C
Identification (IR)	Conforms to reference spectrum
Moisture Content (KF)	< 0.5 % w/w
Trace Metals (ICP-MS)	< 10 ppm total

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.