Solid-state NMR spectroscopy can be used to study both the structure and dynamics of macromolecular systems that exhibit different degrees of order to understand the fundamental properties of materials. One such point of interest is to determine the difference of a polymer’s structure, local dynamics and phase transition between various isomers of semicrystalline polymers. Recently, a thorough study on stereospecific ring-opening metathesis polymerization has been conducted on norbornenes making the synthesis and the study of hydrogenated polynorbornene (hPNB) stereoisomers possible. The unique local dynamics of atactic- syndiotactic- and isotactic-hPNBs under various temperatures below melting temperatures will be shown and the relationship between tacticity and molecular dynamics will be discussed.

Effect of stereoregularity on local dynamics of hydrogenated polynorbornenes as studied by solid-state NMR

255th National Meeting (2018)

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