Journal: Macromolecular Rapid Communications
Article Title: Orthogonal Staggered Alignment of Molecular Chains in Aramid Whiskers: A Game‐Changer for Sustainable, High‐Performance Composites
doi: 10.1002/marc.202500919
Figure Lengend Snippet: Crystallographic orientation of PBA whiskers revealed by transmission electron microscopy (TEM) and selected‐area electron diffraction (SAED). a) Bright‐field TEM image of a PBA whisker synthesized at 340°C for 2 h. The arrow indicates crystal fiber growth along the b ‐axis. b) Schematic illustration of lamellar orientation relative to the incident electron beam, corresponding to the configuration observed in a). c) Indexed SAED pattern recorded with the incident beam aligned parallel to the [001] zone axis. Several Bragg reflections are indexed, confirming monoclinic symmetry and high crystallinity.
Article Snippet: To correlate morphological features with crystallographic orientation, selected‐area electron diffraction (SAED) patterns were collected using a JEOL JEM‐2100F transmission electron microscope operated at 200 kV.
Techniques: Transmission Assay, Electron Microscopy, Whisker Assay, Synthesized