Fluorotelomer

Fluorotelomers are fluorocarbon-based oligomers, or telomers, synthesized by telomerization. Some fluorotelomers and fluorotelomer-based compounds are a source of environmentally persistent perfluorinated carboxylic acids such as PFOA and PFNA, while others are under extended investigation.

In the radical telomerization of fluorotelomer molecules, a variety of fluorinated alkenes can serve as unsaturated taxogens including tetrafluoroethylene, vinylidene fluoride, chlorotrifluoroethylene, and hexafluoropropene. However, many fluorotelomers, such as fluorotelomer alcohols, are fluorocarbon-based because they are synthesized from tetrafluoroethylene. In addition to alcohols, synthetic products include fluorotelomer iodides, olefins, and acrylate monomer.Polymerized acrylate from iodide and alcohol monomers represent >80% of the global manufacture and use of fluorotelomer-based products.

Fluorotelomers are used in "fire-fighting foams, grease-resistant food packaging, leather protectants and stain-resistant carpeting and textiles." Fluorotelomers are applied to food contact papers for their lipophobicity, making paper resistant to absorbing oil from fatty foods. Fluorotelomer coatings are used in microwave popcorn bags, fast food wrappers, candy wrappers, and pizza box liners.

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