Junction-point density

{
  "id": "MLC-T-CHM-006293",
  "term": "Junction-point density",
  "field": "Chemistry",
  "definition": "The count of crosslink points, where network chains meet, in each unit volume of a polymer network. It reflects how densely the material is crosslinked and so governs its elasticity and its swelling in solvents. A higher density gives a stiffer network that swells less, and in the simplest rubber elasticity model the shear modulus rises in direct proportion to it.",
  "subject": "Polymer",
  "see_also": [
    "crosslink density"
  ],
  "references": [
    "PAC, 2007, 79, 1801. 'Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007)' on page 1820 (https://doi.org/10.1351/pac200779101801)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/junction-point-density/"
}