Published online by Cambridge University Press: 13 July 2009
We still have much to learn about the morphologies of natural and synthetic polymers crystallized in bulk. Nevertheless, conventional X-ray and thermodynamic studies of crystallinity in polymeric materials over the past 60 years have given us a clear picture of the concept of crystallinity and the molecular features which promote crystallinity in these substances. Apart from issues of chain connectivity, the science of conventional molecules proved adequate for the task!