Unperturbed radius of gyration

{
  "id": "MLC-T-CHM-012450",
  "term": "Unperturbed radius of gyration",
  "field": "Chemistry",
  "definition": "The radius of gyration of a polymer chain when it is in an unperturbed conformational state, typically in a theta solvent. This value represents the root-mean-square distance of the chain segments from its center of mass, under conditions where excluded volume effects are absent. It is a fundamental measure of the size of an ideal random coil polymer.",
  "subject": "Polymer",
  "see_also": [
    "unperturbed conformational state"
  ],
  "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/unperturbed-radius-of-gyration/"
}