Chapter 11. Infrared Spectra of Inorganic Materials

Summary

Chapter 11 is focused on the interpretation of polymer spectra. Because of the importance of polymer spectra, this area is now considered in some detail in Chapter 11. Section I of the chapter builds on the interpretation of the spectra of hydrocarbon polymers started in exercise sections I and II. The sampling of polymers to acquire infrared and Raman spectra often requires specialized techniques. A short introduction to a few of these techniques is given in section III. The chemistry involved in the formation of polymers is reviewed in part IV with examples of condensation and addition polymerization. The effects on both the spectra of copolymers in which block and random copolymerization occurs, plus crosslinked polymerization are studied. Tacticity is then explored with evidence for its presence in the spectra of polypropylene. This leads to an examination of conformational isomerism and the impact of this type of structural modification on polymer spectra. The chapter closes with a discussion and examples of the use of Flow Diagrams in polymer identification.