Flory-Fox equation

{
  "id": "MLC-T-CHM-004490",
  "term": "Flory-Fox equation",
  "field": "Chemistry",
  "definition": "An equation that ties the intrinsic viscosity and molar mass of a dissolved polymer to the mean-square radius of gyration: their product equals a coefficient times the mean-square radius of gyration raised to the power 3/2. The coefficient depends on chain expansion, constitution and molar-mass distribution. A separate relation by the same authors has the glass transition temperature falling below its limiting value by K/Mn, where K is a constant and Mn the number-average molar mass.",
  "subject": "Polymer",
  "see_also": [
    "Flory-Fox assumption",
    "Kirkwood-Riseman theory",
    "equivalent hydrodynamic volume",
    "mean-square end-to-end distance",
    "mean-square radius of gyration"
  ],
  "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 104 (https://doi.org/10.1515/pac-2013-0201)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/flory-fox-equation/"
}