NMR Imaging of Polymers,Blends and Composites:The Relevance of Chemical,Functional,and Dynamical Information at the Micron to Millimeter Length Scale

摘要

A variety of natural and synthetic polymers are well-suited to nondestructive NMR imaging investigations.In particular,relatively fast reorientational chain motions in low T_g polymers significantly attenuate dipolar couplings among the individual spins in the polymer,resulting in spatial resolution on length scales of tens to hundreds of microns.