biostudies-literatureVan Opdenbosch DBayerisches Staatsministerium für Umwelt und Verbraucherschutz217-227https://www.ebi.ac.uk/biostudies/studies/S-EPMC7941308biostudies-literatureUnknown54(Pt 1)Recently, the authors reported on the development of crystallinity in mixed-tacticity polyhydroxybutyrates. Comparable values reported in the literature vary depending on the manner of determination, the discrepancies being partially attributable to scattering from paracrystalline portions of the material. These portions can be qualified by peak profile fitting or quantified by allocation of scattered X-ray intensities. However, the latter requires a good quality of the former, which in turn must additionally account for peak broadening inherent in the measurement setup, and due to limited crystallite sizes and the possible presence of microstrain. Since broadening due to microstrain and paracrystalline order both scale with scattering vector, they are easily confounded. In this work, a meJournal of applied crystallographyDetermining paracrystallinity in mixed-tacticity polyhydroxybutyrates.PMC7941308BayBiotech TLK01U-69042Van Opdenbosch DHaslbock MZollfrank CfalseDetermining paracrystallinity in mixed-tacticity polyhydroxybutyrates.Recently, the authors reported on the development of crystallinity in mixed-tacticity polyhydroxybutyrates. Comparable values reported in the literature vary depending on the manner of determination, the discrepancies being partially attributable to scattering from paracrystalline portions of the material. These portions can be qualified by peak profile fitting or quantified by allocation of scattered X-ray intensities. However, the latter requires a good quality of the former, which in turn must additionally account for peak broadening inherent in the measurement setup, and due to limited crystallite sizes and the possible presence of microstrain. Since broadening due to microstrain and paracrystalline order both scale with scattering vector, they are easily confounded. In this work, a me2021-01-01T00:00:00Z2021 Feb2025-04-05T10:15:00.759Z2022-02-09T14:14:04.263ZS-EPMC79413083383364910.1107/S1600576720015794