Chemical functionality

{
  "id": "MLC-T-CHM-001947",
  "term": "Chemical functionality",
  "field": "Chemistry",
  "definition": "The capacity of the reactive groups carried by a polymer or polymer network to take part in chemical reactions, set by the kind of group present. A sol-gel network made from a vinyl-substituted trialkoxysilane, for example, offers the reactivity of its vinyl groups. It is a different quantity from the functionality of a monomer, the number of bonds a monomer can form, which decides whether a step-growth reaction gives linear chains or a network.",
  "subject": "Polymer",
  "see_also": [
    "network",
    "sol-gel process"
  ],
  "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 1804 (https://doi.org/10.1351/pac200779101801)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/chemical-functionality/"
}