Spectroscopy is the study of the interaction of matter with microwave (NMR), infrared (FTIR), and Visible (UV-vis) light.
We can use various techniques to characterize polymers and identify the relationship between the polymer structures and their physical properties
Depending on the experiment performed, NMR spectroscopy can be used to gather important information about the structure and molecular nature of the polymer system.
Other Nuclei can also be detected by NMR to gather more information on the structural composition. The following nuclei can be used to run NMR spectroscopy experiments: 13C, 19F, 31P, 2H, 11B, 77Se, 15N, 29Si.
2D NMR can be used if the polymer requires a more thorough investigation in order to determine structural characteristics. For example, homonuclear (1H, 1H) COSY, TOCSY, NOESY, and heteronuclear (1H, 13C) HSQC, HMBC experiments are possible.