Osmotic virial coefficient

{
  "id": "MLC-T-CHM-008354",
  "term": "Osmotic virial coefficient",
  "field": "Chemistry",
  "definition": "A coefficient in the virial expansion of osmotic pressure, which accounts for the non-ideal behavior of polymer solutions at higher concentrations. The second osmotic virial coefficient, A2, reflects the interactions between polymer molecules and the solvent. A positive A2 indicates good solvent conditions, while a negative A2 suggests poor solvent conditions.",
  "synonyms": [
    "virial coefficient of the chemical potential"
  ],
  "subject": "Polymer",
  "see_also": [
    "number-average molar mass"
  ],
  "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 93 (https://doi.org/10.1515/pac-2013-0201)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/osmotic-virial-coefficient/"
}