Solution Grown Crystals of an Acetal Resin

Publisher Website
Google Scholar
Abstract
Single crystals of polyoxymethylene have been grown from dilute solution. They consist of hexagonal lamellae, often thickened by growth from screw dislocations. The chain molecules are normal to the lamellae which are 100 A thick. Thus, it is suggested that the molecules have a folded conformation. In many of the crystals double Bragg reflections were found in the electron diffraction patterns, resulting from rotation of the lamellae during growth. Dark field electron microscope photographs of these crystals exhibit moiré patterns.