THERMOPLASTIC AND SPECTROSCOPIC PROPERTIES OF AMORPHOUS FLUOROPOLYMERTHIN-FILMS

Infrared absorption spectra are reported for fluoropolymer films simil ar to 0.2 mu m thick produced by vacuum pyrolysis of high polymers of the trade name Teflon AF (Teflon amorphous fluoropolymer). Films were formed using source powders of several mole fractions for the two cons tituent monomers. Infrared features are identified and interpretations are given for the variation in features with source material composit ion. Thermal stability and glass transition data in nitrogen are repor ted for several of the polymer film and source materials. Methods for estimating the stoichiometry in evaporated samples are given.