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ARTICLE · 09 FEBRUARY 2024

Fluoropolymer Focus

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To understand fluoropolymers, one must first understand PFAS. PFAS are a broad class of chemicals for which there is no single, globally harmonized definition.

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What Are Fluoropolymers?

To understand fluoropolymers, one must first understand PFAS. PFAS are a broad class of chemicals for which there is no single, globally harmonized definition. Many regulations define PFAS based on their structure and atomic composition and specifically the carbon–fluorine (C–F) bond found in all PFAS. A definition used in several federal and state regulations within the United States, for instance, describes PFAS as a "class of fluorinated organic chemicals containing at least one fully fluorinated carbon atom." Such broad, chemical structure-based definitions, however, cover a range of about 9,000 substances, which can vary greatly in risk presented and toxicological profiles. Such a structural definition that includes PFAS of Concern or PFOC like the toxic, bio-accumulative, persistent and mobile per- and polyfluoroalkyl carboxylic and sulfonic acids (example: PFOA and PFOS) also brings within its purview of regulation fluoropolymers—a

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