Mean-square unperturbed radius of gyration

{
  "id": "MLC-T-CHM-007088",
  "term": "Mean-square unperturbed radius of gyration",
  "field": "Chemistry",
  "definition": "A measure of the average size of a polymer coil in a theta solvent, where polymer-solvent and polymer-polymer interactions are balanced. It represents the mean-square distance of all chain segments from the polymer's center of mass, assuming ideal chain behavior without excluded volume effects. This value is often denoted as <s^2>0 and is a fundamental property for characterizing polymer chain dimensions.",
  "subject": "Polymer",
  "see_also": [
    "mean-square radius of gyration"
  ],
  "references": [
    "PAC, 2015, 87, 71. 'Definitions of terms relating to individual macromolecules, macromolecular assemblies, polymer solutions, and amorphous bulk polymers (IUPAC Recommendations 2014)' on page 75 (https://doi.org/10.1515/pac-2013-0201)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/mean-square-unperturbed-radius-of-gyration/"
}