Monomers and Polymers from Hexafluoroacetone

It has been known for some years that the incorporation of trifluoromethyl groups, particularly in the form of the 1, 1, 1, 3, 3, 3-hexafluoroisopropylidene function, (CF₃)₂C (HFIP), into suitable monomers confers a rather unique property profile on the corresponding polymers.1, 2 Among the main advantages are enhanced solubility and processability, higher thermo-oxidative stability, and superior electrical properties. This has led to the synthesis of a large variety of such monomers and polymers, as disclosed in recent reviews.3, 4 The aim of this chapter is to focus on the synthesis of basic intermediates and important monomers, and to highlight important polymer classes containing the 1, 1, 1, 3, 3, 3-hexafluoroisopropylidene moiety.