Pendant groupSide-groupAn offshoot, neither oligomeric nor polymeric, from a chain.
[1] In IUPAC nomenclature of chemistry, a pendant group (sometimes spelled pendent) or side group is a group of atoms attached to a backbone chain of a long molecule, usually a polymer.
Large, bulky pendant groups such as adamantyl usually raise the glass transition temperature (Tg) of a polymer by preventing the chains from sliding past each other easily.
Short alkyl pendant groups may lower the Tg by a lubricant effect.
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