6-FDA 4,4-Diphthalic Anhydride CAS 1107-00-2

6-FDA, also known as 4,4′-(hexafluoroisopropylidene)diphthalic anhydride, Hexafluorodianhydride, has the chemical formula C19H6F6O6.

White crystal or powder, is one of the six most widely used dianhydride monomers, and is currently the most used dianhydride monomer in colorless and transparent polyimide.

The glass transition temperature of polyimide synthesized by 6-FDA is usually above 300°C, and the mechanical properties and electrical properties are well balanced.

It is still the most representative fluorine-containing polyimide so far.