Translational diffusion

{
  "id": "MLC-T-CHM-012247",
  "term": "Translational diffusion",
  "field": "Chemistry",
  "definition": "The net movement of molecules or particles from a region of higher concentration to one of lower concentration, driven by random thermal motion. In polymers, this process describes the overall displacement of entire macromolecules or segments within a solution or melt. The rate of translational diffusion is quantified by the diffusion coefficient, typically measured in square meters per second.",
  "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 97 (https://doi.org/10.1515/pac-2013-0201)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/translational-diffusion/"
}