Description

Ethanesulfonic Acid, 1,1,2,2-Tetrafluoro-2-[(Trifluoroethenyl)Oxy]-, Polymer With Tetrafluoroethene is a high-performance fluorinated polymer known for its exceptional chemical resistance and thermal stability. This advanced material is critical for demanding applications where standard polymers fail, offering a unique combination of sulfonic acid functionality within a perfluorinated backbone. It is primarily sought by manufacturers in the chemical processing, electronics, and specialty coatings industries for creating durable, inert components and membranes.

Application

• Proton Exchange Membranes (PEMs): A key material for fuel cells and electrolyzers, facilitating efficient proton transport.
• Specialty Chemical Processing: Used in the construction of linings, gaskets, and seals for equipment handling aggressive chemicals.
• High-Performance Coatings: Imparts extreme chemical and thermal resistance to surfaces in semiconductor and aerospace applications.
• Advanced Composite Materials: Serves as a functional additive or matrix component to enhance the properties of engineering plastics.
• Ion-Exchange Materials: Utilized in specialized separation and purification processes within the pharmaceutical and fine chemical sectors.
• Electronics Encapsulation: Protects sensitive electronic components from harsh environmental conditions.

Basic Information

Product Name	Ethanesulfonic Acid, 1,1,2,2-Tetrafluoro-2-[(Trifluoroethenyl)Oxy]-, Polymer With Tetrafluoroethene
CAS No.	111173-25-2
Molecular Formula	(C4HF7O4S·C2F4)n
Molecular Weight	Polymer - Contact for details
Synonyms	Nafion® precursor polymer; Perfluorosulfonic acid-TFE copolymer; Poly(tetrafluoroethylene-co-2-[(trifluoroethenyl)oxy]-1,1,2,2-tetrafluoroethanesulfonic acid); PFSA polymer; Fluorinated ionomer; 3M™ Ion Exchange Polymer; Tetrafluoroethylene-Perfluorovinyl Ether Sulfonic Acid Copolymer; TFE/PSVE copolymer
EINECS	Contact for details

Quality Control

Our production of this fluoropolymer adheres to stringent quality management systems. Each batch is characterized for critical parameters including equivalent weight (ion-exchange capacity), thermal stability (TGA), and molecular weight distribution to ensure consistent performance in end-use applications. Certificates of Analysis (COA) detailing lot-specific data are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and should be stored in a cool, dry place at room temperature (15-25°C). For long-term storage, consider using a desiccated environment or inert gas blanket to maintain optimal properties.

Specification

Item	Specification
Appearance	White to off-white granules or pellets
Identification (IR)	Conforms to structure
Equivalent Weight (IEC)	900 - 1200 g/mol SO3H
Thermal Decomposition Onset (TGA)	> 300 °C
Melt Flow Index	Contact for details
Moisture Content (KF)	< 1.0 %

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