Rotational isomeric state

{
  "id": "MLC-T-CHM-010428",
  "term": "Rotational isomeric state",
  "field": "Chemistry",
  "definition": "A specific conformation of a polymer chain segment defined by the fixed dihedral angles around its backbone bonds, corresponding to energy minima. These states arise from the hindered rotation around single bonds, leading to discrete preferred orientations. The statistical distribution of these states determines the overall conformation and flexibility of the polymer chain.",
  "synonyms": [
    "bond-conformational state (in polymer science)"
  ],
  "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 74 (https://doi.org/10.1515/pac-2013-0201)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/rotational-isomeric-state/"
}