The Stereochemical Configuration and Conformation of Synthetic Polymers Observed by 2D and 3D NMR

The study of macromolecules by NMR has made tremendous advances in the past few years, not only with the development of superconducting magnets with increasing field strength, permitting greater sensitivity and spectral resolution, but also in the development of new techniques. Among these are two-dimensional (2D) and three- dimensional (3D) NMR. In 2D NMR the spectrum has two frequency scales at right angles to each other, in 3D NMR we have a third scale perpendicular to the plane defined by these.