Rotational diffusion

{
  "id": "MLC-T-CHM-010423",
  "term": "Rotational diffusion",
  "field": "Chemistry",
  "definition": "The random reorientation of molecules or molecular segments due to thermal energy, leading to changes in their angular position. This process is characterized by a rotational diffusion coefficient, which depends on the size, shape, and local environment of the rotating entity. It is a key factor in understanding the dynamics of polymers in solution and melts.",
  "subject": "Polymer",
  "see_also": [
    "diffusion"
  ],
  "references": [
    "Purple Book, 1st ed., p. 61 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/rotational-diffusion/"
}