Unperturbed dimensions

{
  "id": "MLC-T-CHM-012447",
  "term": "Unperturbed dimensions",
  "field": "Chemistry",
  "definition": "The characteristic dimensions of a polymer chain in a theta solvent, where excluded volume effects are absent and the chain behaves as an ideal random coil. These dimensions reflect the intrinsic flexibility and local interactions within the polymer backbone, without influence from long-range segment interactions. They are often characterized by the unperturbed mean-square end-to-end distance or radius of gyration.",
  "subject": "Polymer",
  "see_also": [
    "θ state"
  ],
  "references": [
    "Purple Book, 1st ed., p. 48 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/unperturbed-dimensions/"
}