Fourier Transform Infrared (FTIR) Spectroscopy is a spectroscopic technique in which the vibrational modes of the molecules comprising a material of interest (often a polymer) are interrogated using infrared radiation. The FTIR provides information about the molecular structure of the material. Infrared spectroscopy is a very commonly used technique which is well described elsewhere. The instrument in our laboratory is equipped with both a microscope attachment and a bench compartment. Samples can be analyzed using transmission, reflectance, and attenuated total reflectance. Scanning across a sample can also be performed in an automated fashion with the equipment available in our laboratory.