The structural language of crystalline polymers. Issue 2 (21st May 2021)

• Record Type: Journal Article
• Authors: Lotz, Bernard
• Is Part Of: Polymer engineering & science. Volume 62:Issue 2(2022)
• Page Start: 304
• Page End: 308
• Publication Date: 2021-05-21
• Subjects: crystal structure -- crystallization -- electron microscopy -- morphology -- polyolefins; Polymer engineering -- Periodicals; Polymers -- Periodicals; 668.9
• DOI: 10.1002/pen.25718
• Languages: English
• ISSNs: 0032-3888

Abstract

Abstract: In sharp contrast with their amorphous counterparts, crystalline polymers provide a wealth of information on their chain conformation, the packing of the chains in unit‐cells, the existence or not of mirror symmetric conformations, on the crystalline lamellae, on the folds linking the crystalline stems, and so forth. Three illustrations of these insights are presented here: (a) the orientation of polymer folds in crystalline lamellae, (b) the complete structural analysis of the alpha phase of isotactic polypropylene by a simple observation of the lamellar morphology, and (c) the so‐called lateral spread following secondary nucleation on the growth faces of a polymer crystal. Abstract :