14255 IUPAC Gold Book - polymer single crystal 10.1351/goldbook.14255 14255 current mentioned: AFM, SANS, SAXS 1 Individually distinct polymer crystal whose lattice, at crystallization, is characterized by a single orientation. Polymer single crystals obtained from dilute solutions are comparatively large, i.e, they have lateral dimensions typically of a few micrometers, which can reach tens of micrometers in some instances. They are normally delimited by well-defined boundary surfaces and may, in rare instances, be manipulated individually. The thickness of individual polymer single crystals (inclusive of the fold surfaces thickness) is now measured by AFM (atomic force microscopy) along with transmission electron microscopy, while average values are derived using SAXS (small-angle X-ray scattering) and SANS (small-angle neutron scattering). twinned polymer crystal https://goldbook.iupac.org/terms/view/14260 PAC, 2011, 83, 1831. 'Definitions of terms relating to crystalline polymers (IUPAC Recommendations 2011)' on page 1856 (https://doi.org/10.1351/PAC-REC-10-11-13) https://goldbook.iupac.org/terms/view/14255/html https://goldbook.iupac.org/terms/view/14255/json https://goldbook.iupac.org/terms/view/14255/plain Citation: 'polymer single crystal' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.14255 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-05-09T18:15:50+00:00