Abstract
This chapter discusses nuclear magnetic resonance (NMR) chemical shift calculations and stereochemical structures of synthetic polymers. In this chapter, all chemical shifts are reported on the δ-scale. Chemical shifts that have been measured with respect to other reference standards have been converted to the δ-scale. High-resolution NMR spectroscopy has given useful information about the stereochemical structures and conformations in polymer solutions through chemical shifts and spin couplings. This chapter illustrates that the high-resolution NMR spectra of polymers in the solid state have been obtained by means of pulse Fourier transform (PFT) techniques. The chemical shifts of the nuclei in the polymers under consideration in this chapter depend on their magnetic environment, which depends on the conformations of the neighboring bonds and on the stereochemical structures of the polymer chains. Consequently the stereochemical structures and conformations of the polymers are obtained through the observation and calculation of the 1 H and 13 C chemical shifts.
Published Version
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