θ temperature

{
  "id": "MLC-T-CHM-011912",
  "term": "θ temperature",
  "field": "Chemistry",
  "definition": "The specific temperature at which a polymer in a given solvent behaves as an ideal chain, meaning the polymer-solvent and polymer-polymer interactions are balanced. At this temperature, the second virial coefficient of the polymer solution is zero. The theta temperature is a characteristic property for a given polymer-solvent system.",
  "subject": "Polymer",
  "see_also": [
    "θ state"
  ],
  "references": [
    "Purple Book, 1st ed., p. 58 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/th-temperature/"
}