Root-mean-square unperturbed end-to-end distance

{
  "id": "MLC-T-CHM-010408",
  "term": "Root-mean-square unperturbed end-to-end distance",
  "field": "Chemistry",
  "definition": "The average spatial separation between the ends of a polymer chain in an ideal theta solvent, where polymer-solvent and polymer-polymer interactions are balanced, and long-range excluded volume effects are absent. This value represents the intrinsic dimensions of the polymer chain, reflecting only short-range interactions and bond geometry. It is a fundamental property for characterizing polymer chain stiffness.",
  "subject": "Polymer",
  "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 76 (https://doi.org/10.1515/pac-2013-0201)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/root-mean-square-unperturbed-end-to-end-distance/"
}