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Fourier Transform Infrared Spectroscopy


Attenuated total reflectance (ATR) accessory being used to measure a high strength polymer fiber.  ATR can also be performed using the microscope attachment of the FTIR.

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.


Molecular structure, changes in functional groups

Created November 13, 2017, Updated November 15, 2019