Krytox functional fluids are fluorinated synthetic oils based on hexfluoropropylene oxide combined with a functional end-group. The end-groups offered include: carboxylic acid, called Krytox 157FS, methyl ester, methylene alcohol, primary iodide, allyl ether and a benzene group. Carboxylic acid, methyl ester and methylene alcohol are listed on TSCA*, while the others are available under the TSCA R&D exemption. Reactions of these groups can be accomplished by employing many of the traditional synthetic methodologies used with their perfluoroalkyl analogues.

FS157 can more rigidly attach to the surface through its functional group and that its fluoroalkylether tail attracts the identical molecular structure of Krytox fluorinated oil, resulting in more tenacious surface adhesion of this lubricant. The FSH series serves as an excellent adhesion promoter and linker molecule for fluorinated oils.

Like the other Krytox fluorinated oils, Krytox 157 FS lubricant is insoluble in most common organic solvents. It is also nonflammable. Decarboxylation occurs on heating above about 170 °C (338 °F) and becomes vigorous at 200 °C (392 °F). The product formed appears to be a mixture, but is mainly a hydro-endcapped version of Krytox fluorinated oil. The decarboxylation of its alkali metal salts in the presence of water occurs at lower temperatures and yields essentially pure polymers end capped with hydrogen.

Krytox Authorized Distributor

Like the other Krytox fluorinated oils, Krytox 157 FS lubricant is insoluble in most common organic solvents. It is also nonflammable. Decarboxylation occurs on heating above about 170 °C (338 °F) and becomes vigorous at 200 °C (392 °F). The product formed appears to be a mixture, but is mainly a hydro-endcapped version of Krytox fluorinated oil. The decarboxylation of its alkali metal salts in the presence of water occurs at lower temperatures and yields essentially pure polymers end capped with hydrogen.

Krytox Authorized Distributor

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